I have had the same problem with the string coming off the top cam while drawing back. On both the Outback and my Switchback it happen three times, once with the Outback and just this last yr. with my Switchback. Everytime, thier customer service email reply was and also the pro shop, said that it was the way i was drawing my bow back, that i was putting unnessisary torque on the string while i draw it back. I will never purchase another Mathews nor will I ever recomend one again, not after that kind of reply.