As some may know, I plan to put on a thin head gasket on this winter. I was wondering if anybody had their head skimmed also. I'm toying with the idea of having a tuner bump up my compression to the highest ratio 93 octane will allow. I'm wondering if anyone has done this on a street ridden ZX10R? Is their more comp. to be had beyond the thin head gasket for 93 octane?