Sometimes jumping can alter speed, either in one direction, about 0.00001u.
When ledge-boosting delaying? movement in the direction perpendicular to the wall can give a higher speed; Delay by increasing optimality in the other, X or Z, direction, usually by changing angle.
Changing angle after boost can slow down speed decrease.
TODO: Optimize stuff from above, maybe 0.2u can be saved.
Old TAS can be converted to a bk2 file.