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Update:
Upon reading various threads about the awesome GSXR brakes and m/c's and all that jazz, we (matt stone and I) came up with this solution.
Remove 1 whole caliper and rotor.
Put on proven F2 master cylinder (off my old front end)
Rebleed.
Voila. My brakes now feel like brakes should, plus I dropped a bunch of rotating and unsprung weight off the front. Will see how it works tomorrow during the Penguin / Ducati Trackday.
As a added bonus, my bike looks that much more like a wannabe GP bike, right Paul