Quote Originally Posted by BestBeagler View Post
I have had everything but a traditional set up fail me I have tried them all. Luckily I all the fails happened in my hand via inspection. The coastlocks get brittle with continual use where they bend the opening and closing of them at the bend causes them to weaken over time just like any wire. Just sharing an experience here. I won't use anything else but a traditional swivel now.
That's part of the reason there's two of them-redundancy is your friend. My bird's are never tethered outside unsupervised. Even if I trusted the equipment I don't trust local predators. I've had one coastlock fail and come unlatched a couple times in the mew (they were always still hooked into the leather jess though), but never two. And that's with using them on big, strong birds like redtails and goshawks for years and years. ANY equipment can fail, it's the falconers job to make sure it's not a disaster if it does and to do what they can to keep it from happening in the first place.