Rgc has a non adjustable 12 inch made by baggetshield on it now, would a 12 inch windvest give more coverage from the wind with the flip they have than the shield i have on now?

 

I just got a new screen. The bike had the 5.25 but it was a little low. I replaced it with the 7.75 and it is good but I wounder if the 10 inch would be better for me. The other night I could tell most of the wind was coming up at me so the taller screen may not help anyway.
This is the one I got.
http://www.cli-maxridinggear.com/ser...ave-FLH/Detail