O.k so I have a detailed bronze (agressor)b cut coming in the mail. I'm wondering if I do have to have it cut smaller, will the "detailing part" be erased by cutting it down??? Also on the wear ring side of a rebuild.. Do they come std., .030 under,ect? Or do they(wear rings) come in .010 increments? I may try this myself and can use any advice I can get. I'm a little confused, sounds like I need to be concerned with the impeller to wear ring clearance in 2 directions. 1) the dia. and 2) having the impeller pulled/shimmed? far enough fwd. BTW it's a berk split bowl I'm working on. Right now if I stand on it out of the hole, she slips bad.