I've got the small ones 2.5" I think and the big ones 5.8". I've used the little ones on a small jig head and the biggies weedless & weedless + nail weights. In both cases the tail wiggle is immense, it's really pronounced. I have only tried them out a couple of times and found they don't sink to quick weedless so it's possible to wind really slowly, lift the rod tip and get a great V wake and the tail still wiggles. Some paddle tail baits only paddle when they reach a certain speed, these work at any speed. Fantastic if you ask me but yet to find enough time to hook a fish.