Jodocus, I have tried sawing with stone across the end . it did work but dulls the stone fast. I have been using a sharp flake and make my cuts length ways on the shaft, drawing the flake over the shaft and off the end the length of my knock. I will then roll the shaft and do the same from the other side, it cuts the wood out pretty easy, it don't wear down the stone as fast as sawing. all of this done of wood, i have never tried it on cane or boo, Good Luck! Ed