ability to switch freestlye superstar abilities on the fly..

[Bang]

You know, you don't need an extra button. Either
1) assign the buttons
example: L + A or L + B are Freestyle scorer moves and L + X or L + Y are Freestyle High Flyer moves.
2) Double tap L quickly to change Freestyle style
example: Double tap L twice to change between Scorer and High Flyer.

That being said, I doubt they'll balance out freestyle superstar pretty well. Also...is this the major gimmick of this game? Ability to change FSS on the fly? That would be horrible.