For veteran and new players, note that in this league, you cannot touch the rim on a dunk.  The monetary penalties are stiff.  You may “air dunk” the ball, but you cannot touch any part of the rim or any hardware.   The reason for this is that although the rims are breakaway, the backboards and corresponding structures aren’t – they’ll simply break, and easily.  We’ve already had this happen once several years ago, and it cost the league $1500.  So please understand the rule and the reason for it.  Note that similar to other penalties, dunking penalties are retroactive, i.e., the player and team can be penalized after the fact for grabbing the rim.  Thanks.  Biraj