When I was young, I turned a spring chest pull into a bowdrawing unit by replacing the springs with short rubber straps. It pulled about 125 pounds at my draw. One day i was hunting with my 96 pounder shooting dowel stuffed Microflite 12s. I shot a smallish buck, 18 yards out and about 9 feet up. The arrow did not even look like it slowed down when it went through the deer. It skipped and jumped across the frozen ground, way out into a posted field in full view of the land owner. The deer was on my side of the property line, just by a foot or two. When I was walking out to get my arrow, I thought to myself, that I was working alot harder than I needed to. Even though I could handle those heavy bows, I wish I would have had enough sense to cap that desire for poundage off about 30 pounds less than what I ended up at. Strength is one thing, but the amount of practice it takes to handle heavy bows can take its toll. Start with what you can handle and work up at your own pace and remember that repetitive high strain motions can have consequences down the road. Even at lighter weights one should do stretching and corrective excersizes to keep the shoulders in tune and to offset muscular imbalances.