Of the two JJP games I have purchased, both had at least one issue that was obvious (WOZ had a standup switch shorted, DI had a opto plug partially plugged in, diverter mech. needed some serious tweaking) and other issues that are not as easily to spot (cabling too tight etc..). Every game I purchase weather new or not gets gone over with a fine tooth comb. Obviously you cant check everything but you can go over quite a bit. I will say though that the overall quality from WOZLE to DILE is lower. Decals instead of direct print cab, the interior or DI was a little dusty. WOZ was just mint when I got it, seems like it was tended to much better, though we are talking about their first game out the door so.. Within the two games I have bought I do not see any noticeable difference in quality control.