Jklein - Im not the one that can give you all the right answers but as far as im concerned I have my bow tuned and restrung at least once a year and thats only shooting for two months out of the year. This is due to the fact that the string you need to remember loosens up the more you shoot. I have the bow restrung and tuned every year on the day I send away for my doe license which here in Pa is around the beginning of August. Every three years I have the cable changed.