That's interesting as the one thing that will make me sell my 02 Dakar is the wind noise from the screen!
I've tried it at all angles and with various spacers but to no avail.I was starting to blame my helmet but if I move my head into clear air or stand on the pegs all is quiet.The noise starts at around 25mph depending on conditions and gets worse as speed increases.I have tried (unsucessfully) to work out the air flow with bits of wool etc.Also moving my hand around above the screen doesn't help either.I spent a lot of motorway miles on the pegs coming back from Sweden earlier this year which is pretty tiring after a while!
BTW, how tall are you?
Cheers,Tony