My bow is set at 66lbs, can go up to 70 but at 66 is easier and smoother to draw. The shock of the bow being shot is less also at this poundage. Built a string stopper for it and makes it even better on the shock when shot.
As far as accuracy, I would imagine that with the bow being smoother on draw not holding so much back that it can help you hold steady easier. Just have your bow tuned correctly and set it where its comfortable for you.
other than that just practice practice practice.