I have given up trying to remember all of the different shields I have had on the B.

As Tax mentioned, I use the MRA mini spoiler attached to the stock shield. It is about 90% as effective as the Madstad while the bike retains the same looks. I love it for the summertime when I want air. I fold it in the down position. If I want to listen to the music or need some protection (rain), I raise it up and the wind noise is gone and visibility is the same. The B is not the same bike when you add a full size windshield. JMHO of course.