Help me understand why this is important. I know one side has a good size chamfer and the other does not. I'll put a chamfer on it if I need to. But they both spin together. I'm not arguing....but help me unnerstand here. I'm not gonna let a small thing like a chamfered gear stop me. I can do that in 15 minutes. I just want to know why you think I need it. It's no doubt chamfered on what is normally the back side.