Interesting. I did not know the history of that shape. Thanks.
I have a Buell S3 and S2. The S2 uses traditional Harley controls on 1" bars. The S3 uses 7/8" bars and more conventional levers. Switching back and forth, it was odd how much nicer the controls felt on the S2, along with some good grips. That experience and the Kuryakyn levers being chrome were my reason for changing them on the Super Xs.