I got the stock 11" screen, no special cut.

I talked to Bret at Madstad about screen size and he suggested I try the 13 inch but after sitting on the bike and guessing where the screen will start, I went with the 11 inch and glad I did. I am 5'10" 30 inch inseam and ride in a slouch, not like a BMW rider that sits straight up.

All the way down, I am looking over it. If I move it up an inch I can look over it or hunker down and look through it. If I move it all the way up, I am looking through it which is what I want for heavy rain and giant bugs!

However, so far I have not had rain or bugs.

Don't know how the contoured bottom cut will look but the standard looks pretty good and it works. I would not be surprised if changing the contour on the bottom where the Madstad does its magic would change the characteristics of the airflow between the screen and faring. It may restrict some of the air flowing on the inside of the screen.

I suggest you call them to get their input. They are very helpful and I got my screen in less than a week after placing the order. Thanks to all of the input from users on this site, I am glad I got the Madstad rather than experiment with all of the variations, heights, angles, vents, etc. available for this bike.