+1 for the Shoei X-12.
Gmax 68S. Something like 19 vents total. You can FEEL the breeze through these things.Very good helmet, reasonably priced. Made in South Korea.
I have a 68s as well. It flows a lot of air which is what I was after when I bought it a couple years ago, but it's noisy as all get out.
+3 for the X12. Also consider a white helmet, makes a differance and it adds to visibilty! I've had a couple Scorpions, problems with them is they have all leaked on me, something us PNW riders are concerned with.