Got a couple questions that you gym types might have a basic answer for. I know that by slowing down exercises, your recruit slow-twitch muscle fibers as well as fast twitch, and more thorougly exercise muscle groups. Obviously timing has some effect... even within sets, you see people doing 5/5 cadence, pausing 1 sec in the middle vs not stopping, etc. Between sets, we see the same thing. Leave maybe 3 minutes between each set to allow max testosterone generation, etc. What about if I'm doing 4 sets... should I do all 4 in a row, or can I do 2, exercise some other muscle group, and come back and do 2 more sets? What's the difference in effect?