Thats a good number to use. 48 is adequate before hitting a muscl group again. I know when I do powerlifting stuff it tends to be in Jan-Feb time frame. I use the bench press as a gauge. We are up around 380lbs for 2 reps, so I would usually wait 5 days till I hit it again. It takes its toll on you and powerlifting is an entirely different demon. I only do it for maybe 4-8 weeks. As for rest periods, yes this is a good standard to follow. I know when with what we do, I require a higher standard of myself and my shooting partner. Hence where I said in an earlier thread, sometimes your job and peer pressure will have great influence on your workouts. I try to get fatigued first with cable stuff than go into heavy lifting or heavy lifting than extended cardio. Explosive stuff is good to do as well. The days you don't want to run, chalk out 100meters and do moderate sprints with a walking recovery. Than do walks the same distance but with weights in your hands(farmer walks). The main thing is what Jerm said, recover enough, but don't take off to much. You will fall off the wagon. Keep forward progress guys! All I did today was shoulders and kettle ball stuff. I did military press 245lbs 3x though! Top that Dewild!! S,art-ass!! ;D