just wanted some feedback on which disc brakes would be best for me. 04 stumpjumper FSR. i have disc hubs, just need to get brakes. ride mostly XC but do at least 4-6 big shuttle rides per year (agate creek, crest trail, etc) in the mountains with long descents. i am 160 lbs and bike is 28 ish. also have heard about brake failure, how common is that?? thanks in advance.