I had the 19" Baggershield for three years on my bike and I got buffeting and wind noise through the sides of my 3/4 helmet-if I opened the vent it helped some but not near perfect.15" ------- set at 55 degrees and it is putting me in a pocket of dead air with a shield that is lower then the Baggershield was.Your friends ------- may of been set for him and not for you unless you were both identical in proportion.------- has a lot of adjustments to fit the rider it is front of.And your right to each his own and it's the ------- for me!