To help us get this thread back on track, I'll add my learnings -- I am 6'1" tall, ride with the seat in high position, and use the standard-height Honda windscreen. I experimented by riding from 10 to 80 mph wearing three different helmets. In all cases using the standard windscreen, I experienced turbulent airflow around my head and lots of wind noise from the "buffeting." After installing a Puig Clip-On Windscreen Visor (size small), I experienced very little buffeting. The visor height can be adjusted. I like the lowest setting so it does not obstruct my view of the road.