I am notably a new rider, I purchased a 2009 Fuji Neveda 1.0 Moutain bike this year, and noticed after a few rides the brake rotors are rubbing a little. This is espeically noticable with the front as I had to remove the wheel to get the bicycle home. Is this rubbing somewhat normal? A relaitive of mine bought the exact same bike, and he had similar issues.. .I've also noticed the disc breaks do not seem to grab quick. I have an older BTM bike w/ V breaks and the seem to brake faster or grip better than my disc brakes.. Are these brakes just breaking in, or do they need adjustments?