I am the local bow tinkerer in the small town where I live. Last night, a guy brought me a Switchback that he purchased new from eBay. The bow has never been fired. Yesterday, while he was away from home, some guy who had never drawn a bow before, drew his Switchback and when my friend got home he was handed his brand new bow of which the string had jumped off the cam. The guy who drew it back said he did not dry fire it, he claims the string jumped off the cam when he was drawing it. Aside from a cut serving, there is nothing wrong with the bow and I am sure I will have no problem straightening things out for him.
Now, I know that the Switchback is a very good bow with a solid design, but is possible that there is something in the design of this bow that could allow the string to jump the cam on rare occasions? Could the guy who drew the bow have torqued it so badly that the string jumped off? Or is it more likely that he dry fired it?
I guess what I am asking is, is there something about the Switchback that I should look for before fixing the damage and giving it back to my friend?