My first time on this Forum --- I have been debating purchasing one but looking Online the Info acts like you already know all there is to know when you read about each model... I decided years years ago taking all the skin off of my forearm I was not into Chunking sticks at deer... March 2017 I injured my Left shoulder ... I have limited use -- Some Crossbows say they have an easy cocking system ,, Ect, Ect. How hard are these weapons to use for different models