diff --git a/Track-Data.md b/Track-Data.md
index 0263635..1de70cd 100644
--- a/Track-Data.md
+++ b/Track-Data.md
@@ -2,219 +2,219 @@ Data about track pieces lives in a few places in RCT2.
 
 First, there is the ordering of track pieces, which is used everywhere in the game; you might see a comparison to `72h` to check if a track piece is an on-ride photo for example. Here is the list. The first two digits are the hex numbers corresponding to the order.
 
-- **00:** flat 
-- **01:** end station 
-- **02:** begin station 
-- **03:** middle station 
-- **04:** 25° ▲ 
-- **05:** 60° ▲ 
-- **06:** flat to 25° ▲ 
-- **07:** 25° ▲ to 60° ▲ 
-- **08:** 60° ▲ to 25° ▲ 
-- **09:** 25° ▲ to flat 
-- **0A:** 25° ▼ 
-- **0B:** 60° ▼ 
-- **0C:** flat to 25° ▼ 
-- **0D:** 25° ▼ to 60° ▼ 
-- **0E:** 60° ▼ to 25° ▼ 
-- **0F:** 25° ▼ to flat 
-- **10:** L ¼ D5 
-- **11:** R ¼ D5 
-- **12:** flat to L bank 
-- **13:** flat to R bank 
-- **14:** L bank to flat 
-- **15:** R bank to flat 
-- **16:** L ¼ D5 bank 
-- **17:** R ¼ D5 bank 
-- **18:** L bank to 25° ▲ 
-- **19:** R bank to 25° ▲ 
-- **1A:** 25° ▲ to L bank 
-- **1B:** 25° ▲ to R bank 
-- **1C:** L bank to 25° ▼ 
-- **1D:** R bank to 25° ▼ 
-- **1E:** 25° ▼ to L bank 
-- **1F:** 25° ▼ to R bank 
-- **20:** L bank 
-- **21:** R bank 
-- **22:** L ¼ D5 25° ▲ 
-- **23:** R ¼ D5 25° ▲ 
-- **24:** L ¼ D5 25° ▼ 
-- **25:** R ¼ D5 25° ▼ 
-- **26:** L "S" bend 
-- **27:** R "S" bend 
-- **28:** L vertical loop 
-- **29:** R vertical loop 
-- **2A:** L ¼ D3 
-- **2B:** R ¼ D3 
-- **2C:** L ¼ D3 bank 
-- **2D:** R ¼ D3 bank 
-- **2E:** L ¼ D3 25° ▲ 
-- **2F:** R ¼ D3 25° ▲ 
-- **30:** L ¼ D3 25° ▼ 
-- **31:** R ¼ D3 25° ▼ 
-- **32:** L ¼ D1 
-- **33:** R ¼ D1 
-- **34:** L twist ▼ to ▲ 
-- **35:** R twist ▼ to ▲ 
-- **36:** L twist ▲ to ▼ 
-- **37:** R twist ▲ to ▼ 
-- **38:** ½ loop ▲ 
-- **39:** ½ loop ▼ 
-- **3A:** L corkscrew ▲ 
-- **3B:** R corkscrew ▲ 
-- **3C:** L corkscrew ▼ 
-- **3D:** R corkscrew ▼ 
-- **3E:** flat to 60° ▲ 
-- **3F:** 60° ▲ to flat 
-- **40:** flat to 60° ▼ 
-- **41:** 60° ▼ to flat 
-- **42:** tower base 
-- **43:** tower section 
-- **44:** flat covered 
-- **45:** 25° ▲ covered 
-- **46:** 60° ▲ covered 
-- **47:** flat to 25° ▲ covered 
-- **48:** 25° ▲ to 60° ▲ covered 
-- **49:** 60° ▲ to 25° ▲ covered 
-- **4A:** 25° ▲ to flat covered 
-- **4B:** 25° ▼ covered 
-- **4C:** 60° ▼ covered 
-- **4D:** flat to 25° ▼ covered 
-- **4E:** 25° ▼ to 60° ▼ covered 
-- **4F:** 60° ▼ to 25° ▼ covered 
-- **50:** 25° ▼ to flat covered 
-- **51:** L ¼ D5 covered 
-- **52:** R ¼ D5 covered 
-- **53:** L "S" bend covered 
-- **54:** R "S" bend covered 
-- **55:** L ¼ D3 covered 
-- **56:** R ¼ D3 covered 
-- **57:** L ½ banked helix ▲ small 
-- **58:** R ½ banked helix ▲ small 
-- **59:** L ½ banked helix ▼ small 
-- **5A:** R ½ banked helix ▼ small 
-- **5B:** L ½ banked helix ▲ large 
-- **5C:** R ½ banked helix ▲ large 
-- **5D:** L ½ banked helix ▼ large 
-- **5E:** R ½ banked helix ▼ large 
-- **5F:** L ¼ D1 60° ▲ 
-- **60:** R ¼ D1 60° ▲ 
-- **61:** L ¼ D1 60° ▼ 
-- **62:** R ¼ D1 60° ▼ 
-- **63:** brakes 
+- **00:** flat
+- **01:** end station
+- **02:** begin station
+- **03:** middle station
+- **04:** 25° ▲
+- **05:** 60° ▲
+- **06:** flat to 25° ▲
+- **07:** 25° ▲ to 60° ▲
+- **08:** 60° ▲ to 25° ▲
+- **09:** 25° ▲ to flat
+- **0A:** 25° ▼
+- **0B:** 60° ▼
+- **0C:** flat to 25° ▼
+- **0D:** 25° ▼ to 60° ▼
+- **0E:** 60° ▼ to 25° ▼
+- **0F:** 25° ▼ to flat
+- **10:** L ¼ D5
+- **11:** R ¼ D5
+- **12:** flat to L bank
+- **13:** flat to R bank
+- **14:** L bank to flat
+- **15:** R bank to flat
+- **16:** L ¼ D5 bank
+- **17:** R ¼ D5 bank
+- **18:** L bank to 25° ▲
+- **19:** R bank to 25° ▲
+- **1A:** 25° ▲ to L bank
+- **1B:** 25° ▲ to R bank
+- **1C:** L bank to 25° ▼
+- **1D:** R bank to 25° ▼
+- **1E:** 25° ▼ to L bank
+- **1F:** 25° ▼ to R bank
+- **20:** L bank
+- **21:** R bank
+- **22:** L ¼ D5 25° ▲
+- **23:** R ¼ D5 25° ▲
+- **24:** L ¼ D5 25° ▼
+- **25:** R ¼ D5 25° ▼
+- **26:** L "S" bend
+- **27:** R "S" bend
+- **28:** L vertical loop
+- **29:** R vertical loop
+- **2A:** L ¼ D3
+- **2B:** R ¼ D3
+- **2C:** L ¼ D3 bank
+- **2D:** R ¼ D3 bank
+- **2E:** L ¼ D3 25° ▲
+- **2F:** R ¼ D3 25° ▲
+- **30:** L ¼ D3 25° ▼
+- **31:** R ¼ D3 25° ▼
+- **32:** L ¼ D1
+- **33:** R ¼ D1
+- **34:** L twist ▼ to ▲
+- **35:** R twist ▼ to ▲
+- **36:** L twist ▲ to ▼
+- **37:** R twist ▲ to ▼
+- **38:** ½ loop ▲
+- **39:** ½ loop ▼
+- **3A:** L corkscrew ▲
+- **3B:** R corkscrew ▲
+- **3C:** L corkscrew ▼
+- **3D:** R corkscrew ▼
+- **3E:** flat to 60° ▲
+- **3F:** 60° ▲ to flat
+- **40:** flat to 60° ▼
+- **41:** 60° ▼ to flat
+- **42:** tower base
+- **43:** tower section
+- **44:** flat covered
+- **45:** 25° ▲ covered
+- **46:** 60° ▲ covered
+- **47:** flat to 25° ▲ covered
+- **48:** 25° ▲ to 60° ▲ covered
+- **49:** 60° ▲ to 25° ▲ covered
+- **4A:** 25° ▲ to flat covered
+- **4B:** 25° ▼ covered
+- **4C:** 60° ▼ covered
+- **4D:** flat to 25° ▼ covered
+- **4E:** 25° ▼ to 60° ▼ covered
+- **4F:** 60° ▼ to 25° ▼ covered
+- **50:** 25° ▼ to flat covered
+- **51:** L ¼ D5 covered
+- **52:** R ¼ D5 covered
+- **53:** L "S" bend covered
+- **54:** R "S" bend covered
+- **55:** L ¼ D3 covered
+- **56:** R ¼ D3 covered
+- **57:** L ½ banked helix ▲ small
+- **58:** R ½ banked helix ▲ small
+- **59:** L ½ banked helix ▼ small
+- **5A:** R ½ banked helix ▼ small
+- **5B:** L ½ banked helix ▲ large
+- **5C:** R ½ banked helix ▲ large
+- **5D:** L ½ banked helix ▼ large
+- **5E:** R ½ banked helix ▼ large
+- **5F:** L ¼ D1 60° ▲
+- **60:** R ¼ D1 60° ▲
+- **61:** L ¼ D1 60° ▼
+- **62:** R ¼ D1 60° ▼
+- **63:** brakes
 - **64:** booster RCT2: Rotation control toggle (Spinning Wild Mouse)
 - **65:** {reserved}RCT2: inverted 90° ▲ to flat quarter loop (multidim)
-- **66:** L ¼ banked helix large▲ 
-- **67:** R ¼ banked helix large▲ 
-- **68:** L ¼ banked helix large▼ 
-- **69:** R ¼ banked helix large▼ 
-- **6A:** L ¼ helix large▲ 
-- **6B:** R ¼ helix large▲ 
-- **6C:** L ¼ helix large▼ 
-- **6D:** R ¼ helix large▼ 
+- **66:** L ¼ banked helix large▲
+- **67:** R ¼ banked helix large▲
+- **68:** L ¼ banked helix large▼
+- **69:** R ¼ banked helix large▼
+- **6A:** L ¼ helix large▲
+- **6B:** R ¼ helix large▲
+- **6C:** L ¼ helix large▼
+- **6D:** R ¼ helix large▼
 - **6E:** {ride base: 2 X 2} RCT2: 25° ▲ L banked
 - **6F:** {ride base: 4 X 4} RCT2: 25° ▲ R banked
-- **70:** waterfall 
-- **71:** rapids 
-- **72:** on ride photo 
+- **70:** waterfall
+- **71:** rapids
+- **72:** on ride photo
 - **73:** {reserved}RCT2: 25° ▼ L banked
 - **74:** {ride base: 1 X 5}RCT2: 25° ▼ R banked
-- **75:** watersplash 
+- **75:** watersplash
 - **76:** {shop/stall} RCT2: flat to 60° ▲ - long base
 - **77:** {ride base: 1 X 2} RCT2: 60° ▲ to flat - long base
-- **78:** whirlpool 
+- **78:** whirlpool
 - **79:** {info kiosk}RCT2: 60° ▼ to flat - long base
 - **7A:** {ride base: 1 X 4}RCT2: flat to 60° ▼ - long base
 - **7B:** {ride base: 3 X 3}RCT2: Cable Lift Hill
-- **7C:** reverse whoa belly slope 
-- **7D:** reverse whoa belly vertical 
-- **7E:** 90° ▲ 
-- **7F:** 90° ▼ 
-- **80:** 60° ▲ to 90° ▲ 
-- **81:** 90° ▼ to 60° ▼ 
-- **82:** 90° ▲ to 60° ▲ 
-- **83:** 60° ▼ to 90° ▼ 
-- **84:** brake for drop 
-- **85:** L 1/8 OTD 
-- **86:** R 1/8 OTD 
-- **87:** L 1/8 DTO 
-- **88:** R 1/8 DTO 
-- **89:** L 1/8 bank OTD 
-- **8A:** R 1/8 bank OTD 
-- **8B:** L 1/8 bank DTO 
-- **8C:** R 1/8 bank DTO 
-- **8D:** Diag flat 
-- **8E:** Diag 25° ▲ 
-- **8F:** Diag 60° ▲ 
-- **90:** Diag flat to 25° ▲ 
-- **91:** Diag 25° ▲ to 60° ▲ 
-- **92:** Diag 60° ▲ to 25° ▲ 
-- **93:** Diag 25° ▲ to flat 
-- **94:** Diag 25° ▼ 
-- **95:** Diag60° ▼ 
-- **96:** Diag flat to 25° ▼ 
-- **97:** Diag 25° ▼ to 60° ▼ 
-- **98:** Diag 60° ▼ to 25° ▼ 
-- **99:** Diag 25° ▼ to flat 
-- **9A:** Diag flat to 60° ▲ 
-- **9B:** Diag 60° ▲ to flat 
-- **9C:** Diag flat to 60° ▼ 
-- **9D:** Diag 60° ▼ to flat 
-- **9E:** Diag flat to L bank 
-- **9F:** Diag flat to R bank 
-- **A0:** Diag L bank to flat 
-- **A1:** Diag R bank to flat 
-- **A2:** Diag L bank to 25° ▲ 
-- **A3:** Diag R bank to 25° ▲ 
-- **A4:** Diag 25° ▲ to L bank 
-- **A5:** Diag 25° ▲ to R bank 
-- **A6:** Diag L bank to 25° ▼ 
-- **A7:** Diag R bank to 25° ▼ 
-- **A8:** Diag 25° ▼ to L bank 
-- **A9:** Diag 25° ▼ to R bank 
-- **AA:** Diag L bank 
-- **AB:** Diag R bank 
+- **7C:** reverse whoa belly slope
+- **7D:** reverse whoa belly vertical
+- **7E:** 90° ▲
+- **7F:** 90° ▼
+- **80:** 60° ▲ to 90° ▲
+- **81:** 90° ▼ to 60° ▼
+- **82:** 90° ▲ to 60° ▲
+- **83:** 60° ▼ to 90° ▼
+- **84:** brake for drop
+- **85:** L 1/8 OTD
+- **86:** R 1/8 OTD
+- **87:** L 1/8 DTO
+- **88:** R 1/8 DTO
+- **89:** L 1/8 bank OTD
+- **8A:** R 1/8 bank OTD
+- **8B:** L 1/8 bank DTO
+- **8C:** R 1/8 bank DTO
+- **8D:** Diag flat
+- **8E:** Diag 25° ▲
+- **8F:** Diag 60° ▲
+- **90:** Diag flat to 25° ▲
+- **91:** Diag 25° ▲ to 60° ▲
+- **92:** Diag 60° ▲ to 25° ▲
+- **93:** Diag 25° ▲ to flat
+- **94:** Diag 25° ▼
+- **95:** Diag60° ▼
+- **96:** Diag flat to 25° ▼
+- **97:** Diag 25° ▼ to 60° ▼
+- **98:** Diag 60° ▼ to 25° ▼
+- **99:** Diag 25° ▼ to flat
+- **9A:** Diag flat to 60° ▲
+- **9B:** Diag 60° ▲ to flat
+- **9C:** Diag flat to 60° ▼
+- **9D:** Diag 60° ▼ to flat
+- **9E:** Diag flat to L bank
+- **9F:** Diag flat to R bank
+- **A0:** Diag L bank to flat
+- **A1:** Diag R bank to flat
+- **A2:** Diag L bank to 25° ▲
+- **A3:** Diag R bank to 25° ▲
+- **A4:** Diag 25° ▲ to L bank
+- **A5:** Diag 25° ▲ to R bank
+- **A6:** Diag L bank to 25° ▼
+- **A7:** Diag R bank to 25° ▼
+- **A8:** Diag 25° ▼ to L bank
+- **A9:** Diag 25° ▼ to R bank
+- **AA:** Diag L bank
+- **AB:** Diag R bank
 - **AC:** Log flume reverser
-- **AD:** spinning tunnel 
-- **AE:** L barrel roll ▲ to ▼ 
-- **AF:** R barrel roll ▲ to ▼ 
-- **B0:** L barrel roll ▼ to ▲ 
-- **B1:** R barrel roll ▼ to ▲ 
-- **B2:** L bank to L ¼ D3 25° ▲ 
+- **AD:** spinning tunnel
+- **AE:** L barrel roll ▲ to ▼
+- **AF:** R barrel roll ▲ to ▼
+- **B0:** L barrel roll ▼ to ▲
+- **B1:** R barrel roll ▼ to ▲
+- **B2:** L bank to L ¼ D3 25° ▲
 - **B3:** R bank to R ¼ D3 25° ▲
 - **B4:** L ¼ D3 25° ▼ to L bank
 - **B5:** R ¼ D3 25° ▼ to R bank
-- **B6:** powered lift 
-- **B7:** L large ½ loop ▲ 
-- **B8:** R large ½ loop ▲ 
-- **B9:** R large ½ loop ▼ 
-- **BA:** L large ½ loop ▼ 
-- **BB:** L flyer twist ▲ to ▼ 
-- **BC:** R flyer twist ▲ to ▼ 
-- **BD:** L flyer twist ▼ to ▲ 
-- **BE:** R flyer twist ▼ to ▲ 
-- **BF:** flyer ½ loop ▲ 
-- **C0:** flyer ½ loop ▼ 
-- **C1:** L fly corkscrw ▲ to ▼ 
-- **C2:** R fly corkscrw ▲ to ▼ 
-- **C3:** L fly corkscrw ▼ to ▲ 
-- **C4:** R fly corkscrew ▼ to ▲ 
-- **C5:** heartline transfer up 
-- **C6:** heartline transfer down 
-- **C7:** L heartline roll 
-- **C8:** R heartline roll 
-- **C9:** mini golf hole A 
-- **CA:** mini golf hole B 
-- **CB:** mini golf hole C 
-- **CC:** mini golf hole D 
+- **B6:** powered lift
+- **B7:** L large ½ loop ▲
+- **B8:** R large ½ loop ▲
+- **B9:** R large ½ loop ▼
+- **BA:** L large ½ loop ▼
+- **BB:** L flyer twist ▲ to ▼
+- **BC:** R flyer twist ▲ to ▼
+- **BD:** L flyer twist ▼ to ▲
+- **BE:** R flyer twist ▼ to ▲
+- **BF:** flyer ½ loop ▲
+- **C0:** flyer ½ loop ▼
+- **C1:** L fly corkscrw ▲ to ▼
+- **C2:** R fly corkscrw ▲ to ▼
+- **C3:** L fly corkscrw ▼ to ▲
+- **C4:** R fly corkscrew ▼ to ▲
+- **C5:** heartline transfer up
+- **C6:** heartline transfer down
+- **C7:** L heartline roll
+- **C8:** R heartline roll
+- **C9:** mini golf hole A
+- **CA:** mini golf hole B
+- **CB:** mini golf hole C
+- **CC:** mini golf hole D
 - **CD:** RCT2: mini golf hole E
 - **CE:** RCT2: inverted flat to 90° ▼ quarter loop (multidim)
 - **CF:** RCT2: Quarter loop 90° ▲ to invert
 - **D0:** RCT2: Quarter loop invert to 90° ▼
 - **D1:** RCT2: L curved lift hill
 - **D2:** RCT2: R curved lift hill
-- **D3:** L reverser 
-- **D4:** R reverser 
+- **D3:** L reverser
+- **D4:** R reverser
 - **D5:** Air Thrust top cap
 - **D6:** Air Thrust Vertical down
 - **D7:** Air Thrust vertical down to level
@@ -223,7 +223,7 @@ First, there is the ordering of track pieces, which is used everywhere in the ga
 - **DA:** R ¼ D3 25° ▲ banked
 - **DB:** L ¼ D3 25° ▼ banked
 - **DC:** R ¼ D3 25° ▼ banked
-- **DD:** L ¼ D5 25° ▲ banked 
+- **DD:** L ¼ D5 25° ▲ banked
 - **DE:** R ¼ D5 25° ▲ banked
 - **DF:** L ¼ D5 25° ▼ banked
 - **E0:** R ¼ D5 25° ▼ banked
@@ -237,8 +237,8 @@ First, there is the ordering of track pieces, which is used everywhere in the ga
 - **E8:** R bank 25° ▼ to 25° ▼
 - **E9:** L bank to L bank 25° ▲
 - **EA:** R bank to R bank 25° ▲
-- **EB:** L bank 25° ▲ to L bank flat 
-- **EC:** R bank 25° ▲ to R bank flat 
+- **EB:** L bank 25° ▲ to L bank flat
+- **EC:** R bank 25° ▲ to R bank flat
 - **ED:** L bank to L bank 25° ▼
 - **EE:** R bank to R bank 25° ▼
 - **EF:** L bank 25° ▼ to L bank flat
@@ -327,6 +327,53 @@ More data about each track piece lives in a few different places in the game. Fi
 
 ## Height/Direction Change Data
 
-Data about the height and direction change of track pieces is stored in 11-byte structs, beginning at 0x994e34. However, the structs here **do not** map 1:1 with track pieces. Instead, use the lookup table beginning at `0x994a38` to determine which struct corresponds to your given track piece.
+Data about the height and direction change of track pieces is stored in 11-byte
+structs, beginning at `0x994e34`. However, the structs here **do not** map 1:1
+with track pieces. Instead, use the lookup table beginning at `0x994a38` to
+determine which struct corresponds to your given track piece.
 
-There are two lookup tables, one at `0x994a38` and one at `0x994632`. I am not sure yet which one is used in which situations, though it depends on whether a flag is set at bit 20 of the ride struct beginning at `0x97CF40`.
+There are two lookup tables, one at `0x994a38` and one at `0x994632`. I am not
+sure yet which one is used in which situations, though it depends on whether a
+flag is set at bit 20 of the ride struct beginning at `0x97CF40`.
+
+Here's the breakdown of those 11 byte structs
+
+##### bytes 0-4
+
+all empty, as far as I can tell
+
+##### byte 5
+
+contains flags relating to helixes and loops
+
+##### byte 6
+
+255 if a loop piece that ends going downward, else 0
+
+##### byte 7
+
+These seem to track the height change required by the piece. 16 represents a
+height change of 1 unit, but there are also 8 and 12 represented. check byte 8
+for the direction.
+
+Some of this is confusing; a helix up piece should have at least some height
+change but instead is 0 in the code. Bit 3 set means "helix down"
+
+##### byte 8
+
+bit 0: always set (?)
+bit 1: 0 if track piece starts diagonal, 1 if track piece starts orthogonal
+bit 2: if 0, right turn
+bit 3: if 0, left turn
+bit 4 or 5: if either is 1, track starts or finishes downhill
+bit 6 or 7: if either is 1, track starts or finishes uphill
+
+So a flat track piece with no turns would be 15.
+
+##### byte 9
+
+4 if the track piece starts or ends at a 90 degree angle. 0 otherwise.
+
+##### byte 10
+
+is either 1 or 255, 1 if a turn?