Yup. Been there. The batwing solved all the updraft issues.I have the HD touring detachable on my 04B. It creates some rather bothersome turbulence behind it. Faster you go, or wind/crosswind, the worse it is. Even wearing my full face helmet my vision gets blurred some. Funny thing is if I put my hand on my knee with fingers extended it will block the air. I need to figure out where to put some kind of deflector, or start rounding up some road glide fairing parts. Not too crazy about the look, but I want to be able to fly down the highway in comfort.