I am 6'1", 32 inch inseam, and run with a Givi Windscreen with the Madstad adjustable bracket for most of the time. To me, the important part is the Madstad bracket, it allows me to adjust the windscreen on the fly and make it much higher than stock ( or the normal bracket, for that matter ) whenever I do any interstate riding. It puts the airflow just above my helmet. Right now, I am going 'commando' with no windscreen just to keep myself cool during the 90+ degree weather. The Givi/Madstad combo was so good it was keeping most of the airflow away from the mesh jacket.
Toys : 2009 Versys ( Blue ), 2006 Mazda MX-5 Miata
Needs : 2016 Mazda CX-5 ( RIP Mazda5 ), 2007 Honda Civic