All this talk about broken games makes me nervous about mine .... while I can easily navigate Stern or Bally/Williams, JJP are a bit newer to me (though I've had my share of issues already on the game but easy fixes). I unfortunately have an older playfield with pooling, but no issues yet with chipping. It's got a good 1000+ plays so far and is a nice change of pace compared to the other games.
On a side note, I have to check my settings as no one seems to get good scores (and I host tournaments, league, and held the IFPA state finals) . I have the highest score at 4.1 million and I can't even get close to that again. LOL