Okay I'm sure there's been discussion on this, I have a little cheat to share too. When trying out new seats it made me want to adjust my windshield quite often. The person before me really tighten down the bolts, so I kind of strip a couple, so it led me to this cheat. I only tighten and loosen the top two now, and leave the bottom too loose. This allows me to quickly, or more quickly raise the windshield up and down. So when I had my Mustang seat on and it sat me a couple of inches higher, I kind of like looking over my windshield which I had sat in the first Notch position. When I took my Mustang seat off and went back to the stock seat. I dropped my windshield all the way down so again I could look over it while riding. Went out on the highway, noticed a little wind so I raise the windshield up to the full up position. Unbelievable difference in the opposite way you would think! I had so much more turbulence, dirty air, with the windshield in full up position. So I dropped it back down all the way jumped back on and took it for another ride and confirm my theory. Less wind especially dirty air, with the full down position. I've came to the conclusion that it's due to the gap between the headlight and the windshield gets greater when you raise the windshield, that wind must be coming up through hitting my head and upper body creating a lot of turbulence. I am not sure how good this is for the passenger yet. I plan on not telling my wife that I lowered the windshield, and just ask her how the wind feels back there next time she rides. Anyone else have similar stories?