I tried GSA screen and it didn't do much. Besides wind noise I had horrible buffeting. Wind noise was not of my concern but the buffeting made my GS impossible to ride. So I tried few screens (spent a lot of money) and ended up with the perfect and the only set that works for me: Wunderlich Marathon screen, MRA spoiler and screen reinforcement braces. The buffeting was solved 100% and the wind noise got cut at half.