I agree with pelham32
I've been doing this once a week as an addtion to another upper press day:
A.Seated BB shoulder press from pins just above the head - 3 reps (ramp up to MTW to activate the nervous system)
B. Seated BB shoulder press - 3-5 reps
C. Push press - 3-5 reps
D. Med ball throw from chest 8-10 reps
E - plyo push-ups 5- 8 reps.
I rest 45 - 60 sec between excercises and 60-120 secs between rounds - Just enough not to inhibit performance
I ramp up B and C until I reach my MTW during the firat 2-3 rounds. I usually do 6-8 rounds total depending on how I feel. To progress I add a little weight to either A, B or C, or do more rounds.
I finish with 2-3 rhomboid/rear delt excercises for 3-4 sets of 8-12.
I'm in a fat-loss phase and my strength + work capacity is increasing every week. It's a nice change of pace (It can be brutal) but I'm really enjoying myself, which to me is the most important thing (as well as losing fat and maintaining/gaining muscle of course)
Give it a go. I'm starting Muay Thai 3-4 hours a week after a 4 month lay-off through injury. I may do 2 upper press + 1 lower press days a week in circuit fashion to improve my explosive power and conditioning. I'll stick with 'bodybuilding style' back training 1 day a week, as thats what works for me.
A long post but hope it was mildly informative