I bagged myself a new Alpinestars R10 lid at MC live in November last year and have only just got a chance to try it. Very nice lid but the whistling through what appears to be the top of the visor is horrendous! A little reasearch and it seems to be quite common with the solution being, get yaself over the tank and behind the bubble, no good for a naked then. If you're gunna get yourself one, try it on the bike first.