Steve,
how about a nice tech article or a few pictures for the brake gallery?
kiwivw,
it should not matter which spindle you use....you can bolt up stock brakes to both spindles too
.
greenterbo,
TUV Germany allows 65-70hp with front disk brakes and 136hp with the vented Kerscher kit. You already mentioned the big advantage of them.....heat dissipation.