That' s true. Bows do perform better and shoot quieter the nearer their max draw weight you get. It' s not necessarily true that bows perform best when the limb bolts are cranked down tighter than a pair of pantyhose. Some bows do, some don' t and anyway, pretty often you have to keep one limb bolt backed off a bit to get the tiller set right.

If you' re at 6 1/2 grains per pound now and haven' t had any problems, I doubt you' d need to back off the draw weight due to arrow weight. (Maybe those kids of yours are wearing you down, costing you sleep and sapping your strength? ).