Some basic questions about our Windshield. I had read that it was 4" but I measured about 5 1/2" today from the middle screw to the top of the shield. So I am assuming that if I get a basic 7" (Wind Splitter, LRS, Freedom, etc.) it is only going to be about an inch and a half taller than the stock. Also, what specific tool do I need for these screws? I also see these screw types all over the bike. It is not a Phillips. I heard it described as a "torque screwdriver" on a YouTube video. Thanks again for your patience.