How often do you guys retune your bow. I shoot a lot and it seems that every 3 months or so my string stretches or something and it seems everything needs to be adjusted again. I have French tuned my bow a couple times and it shoots great, after several months of shooting, things change again. What do I need to do? I have 2 bear empires and it is the same on both bows. I currently use Hogwire strings.