I've just finished my "journey" through the screens, shims, screws, heights, positioning. It was almost 2 months of "fight" and money spending. Now I own Givi Airflow and with my hight (6"2.5') no buffeting nor wind noise.
Through my research, I found the screen bracket for Glee, similar to Madstad but that uses Glee's screen. It's even half a price compared to Madstad and you can choose some options that will change the final price.
But, don't get me wrong. It was in my plans but as I have my problem solved, I won't get it as I don't need it. So, I don't know anything about it but have decided to post the link here as it may help somebody who needs the bracket, without spending hard earned money getting Wee's screen:
http://www.palmerproducts.co.uk/
