i do remember the ball bouncing back a few times 

Me too. it seems to differ game to game. Matt's was a bounce monster, but when I had my TZ it rarely bounced back. I'm sure it's some adjustment, but I never fiddled with mine as it worked. Bit seems to plague a lot of TZ's, so this mod is a good one (unlike all the pimp out mods for TZ).

When can I come over and test it Matt??