brakes suck

got out for another 1:40 last night-this time on the mountain bike. hit the military ridge to a few 'hot' laps at quarry ridge to home. not bad but i hate disc brakes...specifically, i hate the xt brakes on my epic. i've tried to fix them, i've taken them to a shop and i've had friends with much more bike knowledge than i possess try to fix them and this problem has persisted. loud rubbing in the back takes away from the experience of riding in the woods.

happy wednesday.