I've seen quite a bit of discussion on the various screen available for the VFR. A company called "Saeng" makes edging that I've had on 3 of my bikes that improves coverage a bit & smooths the airflow alot. The aerodynamic principle that it's based on is solid. The NEW edging is pricey, but they actually have used available (tho I do kinda wonder where it comes from!) for $7/foot.
