I'm just looking closely at that CG. Does the gen curve downward at the edges. This is what mine would do if I filed it so it doesn't protrude over the edge of the case. Then I had a thought: I could probably machine the whole surface of the CG--skim the entire top a bit. That would keep the whole flat, but perhaps that ain't right. I can't tell from your picture of the gen, Hooligan, but it seems to be perfectly flat.