Basicly, Power Shaky just amounts to non-Finesse Shaky...Shaky combined with Power Fishing. Typical Jig Rig is a weight (like Finesse Drop Shot), Worm Hook and a Split Ring. One of my renditions is a Worm Hook, in this case with the Flippin' Stick on a Gamakatsu EWG 5/0, my weight, all strung on a Black Nickel Snap. With the Floating Tail Section...shake it on a moderately-slack line, like You would a Shakyhead Worm. Shake and Click, tail waggin'.
6" and 4" Do-It Finesse Worms, Shaky and Drop Shot...whatever floats Your boat...I am NOT against the 6" on Drop Shot, either...even better when there's a little grass to stay above. The 6" Finesse Worm is a little long for short-strikers, but rolled up, it's actually not much bait. That littl bit extra length also helps to keep the Panfish off my bait. Serious on Shaky, shot in Soft.