Bench presses. Leg Mechanical Drop Sets As for legs, this is the one muscle group where I advise 45 seconds of rest, but if you can do it without, more power to you. I prefer doing a tri-set of 10 squats, again with a descending degree of difficulties. During the first set, I use 10 lbs plates under my heels, so I have to force myself to stand upright and use mainly quads. This is followed by a set of narrow stance squats, feet about shoulder wide apart. The last set is a wide, almost power lifting stance, this will maximize glute and hamstring involvement.