i would love to test one of those for you
tagger, my only thughts that might make it dart better is to make the tail just a little bit pointier. Doing so could improve the hydrodynamics and maybe not create any drag behind the plug which would cause the tail to stay stationary.
i know that sounds strange, but after NIB's coaching i made 2 identicle darters and one had a sharper point in the tail- that one was drasticly better...