I recently put a bow (Hoyt) on layaway and i actually got to shoot it and it was both really fun and excited. I found that holding the bow straight (has level marker) and that both my arms got tired after an hour of shooting. My question is what can i do to help get more strength so i can hold the bow longer. I was thinking maybe holding a weight up with my left arm (I am right handed) for awhile or something. What would work the best?