ED,that little bit of wear wouldn't worry me. I have seen allot worse on some dirt track motors..I like to run 3 to 5thos.between them.and I also run 3 on the bearings but I run 40or50wt. the motor I was putting together the boy bought a new set. if I had the extra cash I would buy them. I like dealing with people like you theres not to many honest people around any more... thanks Artie