I picked up my C50 with the OEM windshield and was not too happy with it at first blush, a lot of buffeting. I am 6'3" and was wearing a full face with the shield up. I finnaly realized that the windshield was at it lowest setting

. I raised it to it's highest setting and along with a 3/4 helmet solved the problem for me. I will wear the full face in the winter with the sheild down.