Has anyone ever used the Forster case trimmer that mounts on your drill press? I usually chuck up a Lee case trimmer and just hold the shell in the holder and run it up the trimmer. After a while it just starts to eat the skin off my fingers. I would love to be able to have the shell held in the clamp of the Forster trimmer and then run the Lee trimmer down into it. Main question, is the case held against a flat surface in the Forster trimmer? If so my plan would work.