I got this today with a GSXR wheel for my fork swap. 6 piston Hyabusa caliper!
It bolted right up to my 4 piston Tokico adapter. Feel is OK, I could use more piston in my master now. Stock 13mm just barely cuts it. Lever travel is a lil longer and I really need 3 fingers where I used to need 1 or two. If I use 2 fingers my lever hits my other fingers on max braking.
Otherwise it really rocks. I was doing 45 degree stoppies and it is only 24f degrees here!