I am 5'7" and I got the Cee Bailey's Clear with flip 4" x 3". It is good and 100% improvement over stock. If I had it to do again I would get a 4" x 4" with no flip as I think the wider would probably minimize some of the buffeting my passenger complains about and I am not totally convinced the flip helps that much. Cee Baileys and Rifle seem to be the two favorites. I also built my own tuning with some extra washers under the mount which makes the windshield lean backwards a little more. And yes, I can go all the way down and get all the air I can handle, and yes, when it rains I jack that sucker all the way up and it protects me as good as any other windshield would.:D