Try psychobike man youll have more luck on there.
I have been through 2 clutches trying to figure this out. We put in heavier springs but it did not change the results. I've seen some people use 3 value springs off of a suzuki and have gotten good results. I never thought running with no fairings on spray would put that much drag on the bike. How much horsepower are you making? Our dyno showed 210 with the speed but 203 hp which we are thinking is the clutch slipping.Lock-ups for the 10r are pretty scarce... I'm in the same dilemma with the turbo bike. With that said, have you tried some really heavy springs and a good clutch pack? My stock clutch with 6 gnarly springs has held 14ish psi at 200mph on a mostly nekkid bike.... you'd be pretty surprised what you can get away with with good springs.
Opening up a can of worms there...What kind of oil does everyone run? I have been reading that Mobile One 4T 10W40 is very slippery and not good for slipping clutches