I've tried them and they're OK, but they are very boyant. The float when
rigged with just a hook. If you want to fish below the surface, you have to
add weight and I think adding weight takes away from the action. It might work
well on a c-rig or a drop shot, but I haven't tried it that way.
The new version, called Z-too, is salt impregnated and is supposed to have a
slow sink rate. This might be a better bait.

-Zimmy