I was told by a Mustad hook rep that was visiting Murray-Pacific in Sitka that when you crimp your siwash hooks on your tackle - do it all in ONE squeeze of your pliers. According to him if you try to make the eye close with more than one squeeze of your Channel-locks, the temper of the eye is weakened and it can let go at almost any time. And the latter usually happens when you get to look that big smiley right in the eye before the hook lets go!