Even in a vise it slips off because of how the nut is rounded off when it was originally balanced. I guess I could use a Dremel cutting wheel to make two flat spots for the vise to grab onto. I was going to disassemble it and mark it so I didnt have to re-balance it. If I trim a little bit off the turbine nut, will I have to have it re-balanced for sure? Where can I get it balanced anyways (besides sending it to JC or PTE)?