Hey - started using Shakey Heads this year, and have to say I have caught all my biggest fish on them. It's also accounted for the most fish in terms of quantity as well.
I've been using a combination like below. Not a big fan of this type of hook though as it ends up tearing up your worm pretty bad -may switch to the cork screw type in future. Matched up with a Zoom Finese Worm - brown natural color has worked best for me. These worms have a flat underbelly.
I guess they say SH works best in the colder months, and true enough it's slowed down for me recently.
http://www.basspro.com/BiteMe-NonWeedless-Shakey-Ball-Heads/product/74251/-1338517
http://www.basspro.com/Zoom®-Soft-Plastic-Bait-Finesse-Worm/product/7501/-1667754
http://www.youtube.com/watch?v=-7-xktoD6rw&feature=related