the 650 ducktail is not really roundish or square ? It has a really nice taper to the rear section, unlike the round lines of the early 9, and very much unlike the square box-like ducktails of the later Z1000 Mk2 and z750. Even the little z500 had a square-profile ducktail...
I reckon the z650 ducktail is probably one of the best of the lot......
