Hey Roy, you're going to pull your hair out once you start tapering those cane shafts he he! But seriously, I know what you're saying. It's hard to put even pressure on your shaft as you turn it. That's what's causing your problem. Soooo, just put some uneven pressure on the shaft for the offending side. Real hard to explain though, but you try to cup or bend your shaft as it lays in you groove so as to put more of the heel of the taper of the offending side against the wheel. Only rotate your shaft against your wheel enough to take care of the problem area.