Vstream owners 6’-6’2’ [...]I would like to gather information on this specific shield from riders of a similar size.
Standing size doesn't tell you sitting size. I sit the size of many 6' people, but I only stand 5'7". And your sitting height on a motorcycle is also dictated not only by torso size, but arm length, seat type, sitting location, handlebar grip height/pullback/angle, and a few other factors. Airflow also depends on if the bike is lowered or not and how much and where, weight of rider and gear in respect to center of suspension, helmet type/design/model, head placement and angle.
Just saying