Dan, when you're sittin' on the bike, is the very top of the windshield at eye-level to the horizon, and is the angle of the windshield mounted just barely more upright than the angle of your forks?
Ya see, I have a Memphis Shades Fat, and that's exactly how I mount it when I use it(which is seldom), and the airflow at speed juuuuuust barely brushed the very top of my helmet, and thus I've never have had any problem at all with helmet buffeting.
(...but of course, all windshields will have their own airflow properties, and so as they say, "Your results may vary")
