It's best to handle all the crossbows you can. Like a rifle, they all fit differently. What is best for me may not fit you.

Thinking about your disabled shoulder. There are many ways to cock the crossbow. Some people cock by hand, this is hard and can effect the flight of the arrow. It doesn't take much to throw off accarcy. The next is a string cocker that takes off half the pull weight. (150# bow pulls at 75#) Good accarcy because you get the string in the same place each time if you pull the same on both sides. The third is a crank cocker. They have a crank(like a winch) to pull the string for you. These depending which company makes it take the pull poundage down to 5# to a little more. The rope cockers run about $30 to $100 (the $100 is hooked right to the crossbow TenPoint), the cranks run $90 to $200 with the Tenpoint built right in the stock.

It is just about impossible to use a rope cocker in small tree blinds, you need to stand up and lean forward to hock up. Most manufacters say to cock it on the ground and wait till in the blint to insert arrow.

Also look at recurve vs compound. Everyone has their preferance. The recurve is a lot easier to maintain yourself. Most compounds need a bow press to restring or recable.

Hope this helps
Dave