maybe try some rubber bands or bobber stops? or if you just want to keep the buzz bomb from sliding up your line you could put it on a leader and have a swivel up the line a few feet...i ran across these a couple days ago (JIGS) , the way the hook is set on these i think they would take some stress from the headshakes...i also saw Jose Wejebe fishing tuna with them the other night and they ate those things like no tomorrow and he kept talking about how good the hooks stayed in.

mark