the perfect fit is three points of contact from ball to barrel.. but over boring is most peoples preferred choice (ball rolls through). Its all about personal choice and the paint you shoot at the end of the day. If you can trust the paint you have, use the three points of contact, if you don't.. then overbore.I have a Dye Ultralite with three different size backs.
Which one do I use?
The one where the ball rolls straight through, the one that the ball can be blown through with a good puff or the one that is tight and you can not blow it through?
Roland
I do that everyday after a shower. Know your balls, Check 'em out(inspect it and see if there are any warped, dimpled, or irregular balls)
What you get up to on a weekend with those gay migets is your own business don't bring your filth here (thats what plat club is for )the perfect fit is when the ball fits snug and can be blown with a small puff.