if the bow shoots well for you,, keep it or take off a few pounds,, I shoot close to 60# and enjoy it,,I have bows that are less if I want,, to work on my form,, or to shoot longer,, it is different for eveyone,, do what works best for you,,
I shoot my heavier bows just as accurate as the lighter ones,,, maybe better,, I just cant shoot as many arrows,, so I like having both,,, pulling with the off hand is a good idea,, also,,,stop before you start hurting and build up to shooting longer in a gradual way,,, if you want to shoot longer, ,then shoot less arrows per round,,say 3 or 2 instead of 5,,,
many times I am shooting one arrow at a time,,