Hey guys, yet another quick question. How much cardio is too much, and when should I drop it? (I'm 3 wks out) Right now I'm doing 2 days on 1 day off on the treadmill (3.5 mph @ 15% incline for 35 min) in the morning on an empty stomach. Cardio definitely is the best method of burning fat, but I'm noticing my quads are getting flatter. What's up?