Does anyone know what is best for a general muscle building routine. I have been training for about a year consistently now and have always done a four day split, working out 5-6 days a week. I started reading Arnold's Encyclopedia of Modern Bodybuilding and his programs seem to hit each body part much more often. (Chest, back, legs, abs M/W/F and shoulders, arms, abs T/TH/S). To do that I would have to do way fewer exercises in order to recover every other day. Right now I pretty much beat the **** out of each muscle group once every 5 days or so. What are other people's opinions on this? I'm just wondering if I would benefit from changing my frequency up a bit.