An important aspect of lock design is not having anything you can easily grab onto. Get a 4 foot piece of 1" pipe and slip it over the lock end of that bow. On

An important aspect of lock design is not having anything you can easily grab onto. Get a 4 foot piece of 1" pipe and slip it over the lock end of that bow. One hand close the the lock and the other pushing on the opposite end. 35 pounds (an accepted average human push/pull force) x 6 (mechanical advantage of a 4 foot pipe) = 210 lbs of force. The website lists the thickness of the titanium (which is what would matter here) as 40mm.