Installed the Mad------ last week. Pretty impressed with the 13" shield. It eliminates the really strong winds that come from over the screen. I still get air in my face but it is like standing in front of a fan on low speed. A really gentle flow of air in the full down position.
Will play with the settings as the weather changes.
Also, there was a manufacturing issue with the clear screen (faint ghosting when in sunlight). Emailed a pic to their website and received a response that said keep the one I have and they will send a new one.
Really easy to deal with and prompt.