Basically what Jeff has said, IF you are going to shoot this bow in excess of 100 -200 times a week for 3-d/target archery, get the lighter limbs so you do not kill yourself, wheras if you are hunting and shoot it 10 to 20 times a week stick with the heavier limbs ( it will help you build msucle anyway) I think i interpreted this right[8D]
Brent