Sammick is a great place to start I have several. With their takedown model you can also buy additional limbs, maybe start at 35 and work up to 45 as the shoulder heals. I’ve had two rotator cup and one torn bicept in the last 10 years and it’s not something that will leave a permanet dis ability. All my Sammicks are 45 to 50 lbs and my Hoyt Compounds are all 60’s. If he’ll just practice he’ll build that shoulder back up.
When you say practice, how much time are you talking about?
Say, about three times a week for about an hour each session for example?