Originally Posted by DukeSkywalker

At 5'11 172 you are pretty under muscled and /or small framed. I'd just lift hard 4 on 1 off do cardio for 30 mins 3 days a week. Legs legs legs. No need to be adding fancy stuff into the mix. Getting ripped is about diet & cardio & drugs. If the drugs aren't for you, diet & cardio. @ 5'11 172, if you're not ripped at that weight you need to concentrate on getting bigger. Target weight at 5'll you'd be 200 lbs with a 6pack; Tyson was 5'll 220 just for a frame of reference. Before my knee injury I was 228, 6 pack, at 5'5 benching 425 for 4 reps. Personally, if I were you'd I'd join a good jitz gym, some spin classes, & go that route.
Ds