I'm 6'4", my '07 990 has the stock screen and I wear a Reevu helmet. As a fluke I tried the "Super-Visor"
. Granted it looks a little hokey, but it has quieted the wind noise down on my street helmet to almost nothing with ear plugs and considerably reduced helmet buffeting with the stock windscreen.
I'll probably buy one of Dustodust's swept-back carbon shortys
- it appears to be a very good solution for vertically gifted.