Don't know about the other shield you're talking about but I'm 6'2" and the 17" would swirl at the top of my head like a tornado. But the 11"-19" Baggershield is wider and has about a inch of up and down play on the bottom part to make it right at 20". It's for sure calmer with the baggershield and with the addition of the National Cycle mirror mount wing deflectors it's super calm for me.