I am 6'3" and I have the OEM 19"er. My eyes are 3-4 inches above the top and I get just the right amount of wind on myface/head/helmet. I wear a shorty half helmet with 7-eye goggles. I love it and I like that it doesn't take away from the lines or angle of rake. A+ from me.
Should also state, that I rarely use the shield...mostly when I decide to ride into the city to work. Evenings, night outs and weekend cruising is sans windshield