I just put a 16" WindVest on my 2001 Night Train and I can't seem to find the "sweet spot" that they say will give you the optimum benefit. Maybe I'm expecting too much from a windsheild but I don't think that my glasses should shake off my face at 60 mph. I have a stock seat and I'm 5'8". I raised it, lowered it, pushed it forward and pulled it back but the vibration (buffeting) continues. Everybody that has one loves it (in the reviews I've read anyway), but I can't yet say that it's money well spent. Anybody have any suggestions or maybe photos of yours?