Chuck, I'm sure your dad could benefit from a crossbow. I feel that anything that can get or keep you in the game is what one should use.
Stan, the limbs are a good point. I shoot quite a bit over the course of a years time. And every time I hunt I have to shoot at the end of the hunt. So the limbs do get a workout. I had new limbs put on 3 years ago. I cock use a cocking device which insures a very consistent centering.
Yes, a 2 1/2" cutting surface can be forgiving and makes my 1" diameter Muzzys look puny. But I am confident with the performance of my Muzzys.
Yes an Accu Trigger would be a great feature. I have one on my Savage .17HMR and use it as pre set from the factory. Very satisfactory for a factory trigger.