Robcolo,
I feel your pain. I've got a 200 that I'm wanting to up the compression on. I called several people for how much to mill off and it ranged from .016-.030th's. I never could get any info. on the squish band either.
I finally gave up and sent it to Eric Gorr. He knows how much to shave off depending on what kind of gas you want to run and he also knows how to adjust the squish with the TSR software he has. For $30, I though it was worth it.
Hope this helps.