Hey Dennis,
I bought a Fats 19" with a 9" cutout at an insane discount. The 9" is huge, but there's plenty of room to stuff a keilbasa sausage in the gap in case you get hungry. I have since lowered my shield by using a RotoZip saw to cut into the headlight hole 3 inches higher, and I used the 7 inch dimensions as a guide. I did this because I had less buffeting with a 15" Slim than with the taller Fats. I am going to try a Slipstreamer Spitfire, MemphisShades PopTop or Shooter windscreen next, before I get a Windvest.
