Thanks for the link to the vid, Blue. I just have a basic Griffin clamp-on vise. Holds hooks fine, but doesn't rotate. So far, my dubbing loops have been short, mainly tying #14 and #12 dries. I still have to use both hands to wrap, doing the hand-off each wrap. Bobbin hanging down from near the hook eye has always been a problem for me, getting in the way. Its easy to see how I can make a separate bobbin holder easily enough (on a weighted stand) so as to keep my bobbin out of the way while I'm wrapping the loop. I won't have that little extension bar (on the rotary vise in the vid) in the way to hinder my hand-offs. One of these days I should get a rotary vise!