[Damian]

Going for the ball on a block and hitting the backboard is not a violation. Hitting the backboard to showboat is a T and I have called it a few times. The same is true for shooters that shoot a layup and slap the backboards, although that usually warrants a strong warning from me first.

It would be really difficult to shake the backboard or rim by slapping the backboard without breaking your hand.

The foot over the box drives me crazy. I have had several veterans tell me it is not a violation. It sure seems like it to me. I try to keep them off of it. I never have called a lane violation, but have been tempted. The worse part is that they get no advantage for doing it and are usually so twisted around with their feet, that any bounce out from the rim goes to the defense.

For free throws, the bottom spaces must be filled. I give a warning to coach and players. I never have had it go further.