The Big Bite Squirrel Tail Worm was designed to be fished specifically on a shaky head jig. The mid-setcion of the worm is much thinner than the head. This allows the tail to have more action with the slightest movement of your ord. The other key feature is the "bulb" tail section which is made from a specially formulated floating plastic. This causes the worm to stand up at a 45 degree angle when used on a shaky head. The Squirrel Tail is also great when used on a drop shot rig.