When you guys do one arm lifts, like Dumbbell Snatches or Push Presses, do you guys take breaks between arms? Almost like Doing both arms = 2 sets? I used to go right to the next arm when I was done but I find now that Im moving heavier weights than before I cant do that. I'll do one set with my right arm. Rest a minute or two, then do the set with my left arm. Is this o.k or should it be done back to back?