I had right shoulder pain from a ripped rotator cuff. I bought a 50 pound Bowtech Tribute with the regular "smooth" mods and cranked it up to the max which is 53 pounds. I can shoot that just fine and with the Axis arrows, I've got a pass-through on a deer and on a javelina. I think it will work fine on an elk at a reasonable range through the lungs. Last year I had the surgery and it took 6 months to get back to shooting. I bought another Tribute, 60 pounds max, and set it up for 53 pounds. This year I may start to slowly increase the weight, but I'm taking it really slow, because I don't want to have to go through the surgery ever again. I also have pain in my left shoulder from a partial rotator cuff tear, but the surgery is so bad that I'll live with that for now since it doesn't impact my archery. Some bows, like the Tribute with the smooth cam mods were much easier to draw than the others I tried.
-- Good Luck!