I can tell ya what Ive been doing to keep myself kinda up and up till the new bow arrives. I use a heavy book (for me it was a cabelas special edition, hardbound master catalog) and do lifts with my arms starting at my side, then I lift to a vertical position straight out to the side. Ive also been doing the same only raisning to a verticle right in front of me. I dont do a lot of it really because Ive got pretty good upper body strength to begin with. When I first started shooting my old Pearson it was set at 60lbs and only has about 40% let-off. I could manage shooting close to 70 or 80 shots before I started really feeling the effects. Thats why I decided to try a little more strengthening of those back arm muscles.
Brian M.