Hi everybody. I'm new on the forum, I just bought a Benchdog ProTop Contractor table and a Porter Cable 892, a set of bushings and a Jasper insert with bushing sized ring. I set everything up and to my dismay I found the bushing isn't centered. I assumed the rings and screw holes would have been machined accurately and the alignment would be perfect. Will I need to elongate the screw holes that attach the router or is there a better way?