Saved 4f on Katanal by buffering the input combo for the last hit. Saved 4f on Echigoya by changing the Up+Select dash+dashjump (roof exit) to manipulate the RNG (which saved 2f on the last Shuriken), and threw the second Shuriken 2f earlier than before (was thought to be impossible to hit without correcting our position, but better RNG to determine the Shuriken path was enough).