While the stock screen diverts wind pressure from the torso, the helmet is still fully in the windstream. It seems any aftermarket that keeps the same angle would never divert airflow over your helmet since when I'm riding I'm looking straight down the screen or even seeing the front of it. Has anyone tried shimming out the top mounting holes to get a steeper angle on the screen? Wouldn't want to create additional buffeting, though. Do any of the aftermarket screens have a steeper angle?