Quoted from gblack:After buying balls a few times and starting to get a stash I figured it was silly to throw them away or “recycle”. Purchased a tumbler to throw the extras in and keep a rotation.
I have a friend that does this too, but I have my doubts. I have seen plenty of balls with flat impact spots on them or where the whole ball seems to be slightly out-of-round. I'm thinking a tumbler won't fix those issues.