I'm the guy with the madstad prototype ! I live about 10 min from madstad. Madstad is swamped with business and I regularly pester mark to finish my brackets. He is aware that the windshield is desired as he told me he is getting phone calls. Please call him and say waz ahhh. The windshield I have eliminated the shoulder buffeting for me. I dont have a passenger so wouldnt know about that. It does blow the wind up over my head with rain also. Its about the same size as the f4 20. How about everone call mark and say **** or get off the pot ; politely of course as he is super nice !