RE: Design Flaw?
I had the string blow apart on my Browning Oasis just last year. In my opinion the factory string/cables aren't to good. It's a crap shoot, I have had factory Browning strings serve me well (pun intended) and others like the Oasis come apart within a years shooting. I'm just happy the bow wasn't hurt.....great shooting bow for sure.
Good luck selling your F5 Tornado.........your gonna like what you see in the Ross.