I have an 09 Silverado with the factory windshield on it. I raised it up as high as the bolt holes would allow me. I was wondering if there was a way to raise it even more? I have not looked at the mounting system yet and if it cannot be done that is ok. When I ride, the top of the windshield is at eye level. I only ask because I still get some shaking of my helmet at highway speeds. Before I raised it, it was so bad that my ballance was way off when I stopped riding. Now I do not have that problem near as bad. Thanks in advance.