I am 5'10" as well, with a medim Clearview recurve (apprx 16") and I get slight buffeting. But I do not get "pushed" from behind.

One thing I found interesting is that if I flip up the face shield on my 3/4 HJC helmet at speed; the buffeting pretty much goes away.

Coinincentally I have been planning to purchase another 3/4 helmet from Bell, that has a peak installed as well. I am hoping that the peak will negate the buffeting that the visor does, when in the up position. It will be an interesting test.