I had the same dilema you have last year when I bought my new hoyt. I was told the same thing you were told about a bow being better if it is cranked. I did get the 60 partially because I shoot fingers and have a little arthritis. That and 60 is pleanty for hunting. I do however agree with you 63 pounds is good but, are you going to be more apt to go up or down with you poundage. The other thing to consider is arrows I shoot aluminums and 60 being my max with my draw length 28 to shoot a correct size arrow I' m kinda stuck with lighter thin walled arrows. So in that aspect I kinda wish I would have got the 70 pound Just for the option of shooting a more durable arrow. And being able to go up 1-5 lbs. or even 10. I' d go for he 70.