I've been using a medium black and a supersoft black Kamui on two shafts for two months now and not once have I had to scuff them. there's been none of the glazing or mushrooming either, even on the supersoft, which is still surprising me. I'm still waiting for the first miscue, which is just INSANE. I'm puzzled at why some people are saying they are miscuing with it on here, maybe it has something to do with cutting too much of it off, or using a tip pick or a scuffer on it too excessively in the beginning. All my friends are having the same experience with the tip as I am.
I've used lepro and triangle tips and it seemed like every other time I went to the pool hall I had to shave the edges and use a tool to fix the mushrooming, which was constantly changing the hit and the consistency. miscuing was fairly often too from glazing, so these Kamui tips are really impressing me.