Four questions:
* Is there a bouncy tile behaviour? (I have searched)
* Is there a way to prevent springs being carried?
* Has dirbaio (or anyone) released his (or anyones) bouncy tile behaviour ASM?
* Can you reduce the hit box of the unused bricks?

Any contributions gratefully accepted and will be credited in anything it is used in (hopefully a hack).

Well to answer questions 1 and 3
http://www.youtube.com/watch?v=DlSgkBs2z98

The note blocks have a bouncy behavior.  Dirbaio made it so you could ask him.