I ran into this same problem recently. Due to an old Shoulder injury from the army days, I can no longer hold back a compound bow. So earlyier this year i went to Dicks sporting goods and the local field and stream store to look at crossbows. i recommend doing this so you can see in person how your shoulder will hold up to the wait of aiming it. When i was done looking at several xbows. I desided on the wicked ridge Warrior HL. Which so far i am loving. Next Saturday it will get it first day in the woods and hopefully bring home a nice deer.