Mark,
Cheers. Yes, I agree. I'd never seen those before.
I'm talking to a guy with an ST1100 tonight who might know where to get them. They're supposed to be like tear-shaped perspex with special clips which attach onto the sides of the main perspex screen. They're supposed to be adjustable so you can "trim" the airflow. I've got a Cee Baileys screen on at the moment which is pretty good now I've managed to jiggle it into the "furthermost upright" position (which defied belief but oddly it works although it does look a bit weird head-on) .......... but there's still little whippy wind devils coming round the side which I reckon those winglets would see-off.
If all fails, I will take up your kind offer.
Shuck R :- ... yes I know the ones you mean although they weren't the same thing I was after. Have you ever tried them and if so, do they work ? I recall Lord S. weer selling one a while back.
Roger - yes indeed. Red Bull does the job !. Especially blended with other (legal) substances.