Okay I just realized ANOTHER HUGE THING NOBODY HAS AS COMMON KNOWLEDGE.
You can't use IASA frames to AD in Melee.. but neither for Specials as well!?!? This is another reason why Marth's Double Aerials/Aerial to Special is unlocked in PM.
Can't SH Bair WL in Melee from this, Can't SH Bair Side-b/Up-b from this (unless you DJ first).
Hey wanna do your Aerial frame perfect in Melee? Cool, here's two frames less of air time for ya. Not sure if that'd make some SH Bair Aerials work though, I think it would even though the frame data says not because of his raised collision in some of them I think.