Gene larew tattletail worms are THE JUICE! Both the zoom and Fene worms are tapered from mid-body to tail but the tattletail worms have a boat tail end that make the tail go wild on a shakey set up. They are also great on a neko rig.
I'm glad someone else posted this so my biased opinion wasn't alone. hahaha. I was shocked when I saw the action of these tattle tails when they first came out. that little tail simply can't stop moving even in dead calm water. And now that there is a larger size, it's even better.
Another bait I use on shaky heads that has been deadly for some giants on Monticello is a Biffle Bug. Not sure why this works so well but it does.