I bought my new Rockhopper (base) and was really disappointed with the Tetkro brakes and lack of stopping power. These brakes have too much flex in the arms and it was almost impossible to lock the rear. Maybe my weight at 220 is too much for them. I was thinking my only solution was to go the Avid or Hayes disk route, but did not want to spend the money for new wheels and brake system. I spoke to a serious hardtail rider who is large like me and he said go with Shimano LX brakes and Deore LX brake levers. Got a set and I spent an hour or so getting them adjusted and headed for a serious single track trail. Hold crap, was I impressed with these LX brakes! I rode a downhill run for almost a mile of steep decent and these babys were solid. This included crossing 2 creeks about 6 inches deep and muddy. Am I missing something here or are disks really better than a good V brake? After riding trails for close to 20 years using V and center pulls, maybe the mfg. companies move to disk is just not necessary. Your thoughts?