How tightly do the Jaws need to be adjusted to clamp my hook?
Your Jaws should be adjusted for the minimum clamping force required to solidly hold your hook. The first consideration when adjusting the clamping force of the jaws is to make sure they hold tightly enough that your hook will not move while you are tying. A secondary consideration is to adjust the jaws so they are not any tighter than is required. By avoiding using excessive clamping force you will extend the life of your jaws and it will also be easier to lock and un-lock the clamping cam lever.