I do quite a lot of woodturning and the longer I turn the more I appreciate the difference between sharp tools and really sharp tools. Consequently, I go to the Tormek quite often. Lately I have been having a little problem with the sharpening of HSS scrapers. I have a round nose 1/2", 3/4", and an inch wide square end scraper. I am sharpening from the horizontal position using the SVD 110 Tool Rest with Torlok. The problem I have is getting the tool rest tight enough on the support so that it doesn't move slightly while I am grinding and trying to maintain even contact with the surface of the tool rest. I finally put a pliers on the knob and tightened just very slightly. That seemed to work but I am just wondering if I am missing something about how to tighten the tool rest sufficiently to avoid the movement problem.