Wrant - as far as I can tell, it's a stock Yamaha item. I'm 6ft tall and it's OK but I do tilt my head down a bit at higher speeds to stop the wind breaking over the top of my helmet. I'm tempted to try the Vario deflector to see if it improves things.
Pict - I like the look of your belly-pan; that might have to be the next purchase. Where did you get it from?