I had the same results with my old '04 Xtec. It was the factory strings. They'd stretch to hel and back when wet. Get yourself a good set, and hunt in any condition and not fret it.
ORIGINAL: drockw
last year for some crazy reason, after a long hunt in the rain i shot the bow to check and see if it was still on adn it wasnt. that was with my hoyt, for some reason it seemed like rain always affected it.