Our screen material is fairly pourouse and will allow a fair amount of air to pass through it.Just as a point of interest, I personaly have thousands of miles of riding, many of those in hood deep snow, on my machine with no screen in place behind the gills. There are very few snow conditions where it is needed. The odd customer expressed a concern with regards to getting snow on the clutches so we decided to provide the screen to eliminate any concerns for the folks buying our kits.
We have never indicated that creen products do not work, as a matter of fact we do manufacture and sell a large number of conventional screen vents, we designed the Gill-Vent for the people that are looking for something different, appearance wise and performance wise.
thank you
Scott