Hey, I realize BR's a fairly good sized town, but would you happen to know Todd Gaston? I believe he lives there. Warren Womack's not far from you either. You should try to hook up with them. Warren's a WEALTH of bowhunting knowledge. You can read about some of Warren's stuff at
www.newoutdoorcore.com. He's posted his hunting journal over there. I've got a couple DVDs he's made. I only know them from here on the net, but they both seem to be stand up guys. ...from what I've picked up on the "Core".
Make sure you pace yourself when shooting. A lot of the time muscle strain is caused by fatigue and less than proper form. When you shoot a lot you tend to "cheat" on form as your shooting muscles start tiring. Give it a few days rest then ease back into it. If you're just a beginner with a trad bow, limit your practice to about 20 shots for the first week or two. Then move up to about 50. But, for the first month or so, I wouldn't recommend more than 50 shots a session. Your main concern in the initial stages is learning proper form and building those muscles. Accuracy will kind of fall in naturally.
I think using a rest on nonradiused shelfed bows is best. If you don't want to use the rest, you can build your own radius by layering thin leather under your shelf material. Sorta like leaf springs on a truck.
I don't mean to be out of line. I may be the amature talking to the master as far as I know.