To get rid of the buffetting you will have to alter the angle of the screen .
One way to do this is to fit the Madstad bracket ,a cheaper solution is to fit longer windscreen bolts and use spacers to adjust the screen angle .
What you want to do is to lay the screen down towards you so that the wind is deflected over your head .
The standard screen is too upright and creates a vacuum behind the screen , air coming around the screen from the sides spills into this void and causes the buffetting .
A longer screen might help as well , I ended up with a Givi and it works very well .
Blessed are the cracked, for they let in the light. - Spike Milligan
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