Windsheld height and a quiet ride This is simple. Unless you want a screen that is tall enough to flow air over your head ( which means looking through the shield) you will get buffeting and noise. If you want it smoother and quieter you need to LOWER the shield. What you need to do is get your head into clean air. Try this.. put the shield all the way down and stand up on the pegs as you ride.. See it's quiet. So if I were you I'd probably go back to the stock shield keep it down and maybe even raise the seat. If raising the seat isn't an option you could cut down the stock screen an inch or so. Keep the tall shield for winter. Erik PS: The RF800 is a VERY quiet helmet, but ear plugs REALLY help.. won't ride without them