Finally got my new HD quick detach compact 18" windshield. I am 6'3" tall and ride the 08' XL1200C Sportster. The buffeting starts at around 60mph and gets so bad that I cant see. It feels like someone is grabbing my head and shaking it or like the paint shakers at Home Depot... I have tried crouching down below the windshield and it does help if I get really low, but that is uncomfortable and I practically have to lay down on the tank. I have tried the arm over the chest thing and that doesn't help at all. I have tried just about everything and nothing seems to help. The one thing that does eliminate the shake is if I stand up a bit on the bike and get my head well above the windshield into clean air. I think I am going to have around 4-5" cut off the windshield and it should be good. Does anyone have any ideas? I probably should have bought the 14" windshield in the first place but thought it would be nice to have the extra protection on trips... Also if anyone lives in the Seattle area, do you know of a good person who can cut the windshield and do a good job. I am not capable of doing this without destruction. Thanks Oh, one more thing, I dont mind my helmet being up in the wind. I mainly wanted the windshield to reduce the fatigue on long rides and the pain in my right shoulder from years of abuse. Most of the time the windshield will not be on the bike. So, if just my chest is coved that should help on long rides.