Yeah I considered the 19x20 or 19x18 GP style mc as well... thing that made the difference there was the difficulty in mounting a brakelight switch. Everything I've heard about the brakeline type switches has me a bit nervous about using them (i.e. require a lot of pressure to activate the light), so I went with the other style that used the normal oem-style switch. And these have no shortage of power too!

I've got pics of what I did w/ the reservoirs also, if you want to take a look at that. I mounted them to the upper triple clamp w/ some brackets. The integrated reservoirs would be very cool indeed... less tubing/parts in the cockpit.