You guys just confused the heck out of me! I also have the RF-1000 and although I see those little clicking positions, I never really figured out how to use them or why they are there. My shield flips up and stays just fine, but I certainly don't want to open it, even a small crack, if I'm above city speeds because the wind blows in and makes my eyes water. But is there some special things I should realize about the locking mechanisms? I do think it's cool how the shield locks on and comes off. Speaking of the shield, I've never had one fog up as much as this one does! I came to the conclusion that it fogs up easier than most because it's such a tight, secure fit and not as much air goes in as with my cheap HJC. So I bought a Fog City insert: big mistake! That thing scratches way to easy, you can't wipe it with a napkin like most shields, it gets gritty from microscopic dust, and it gets harder and harder to see through over time (hell, I've only had it for a couple months and it's already super hard to see through!!). I need to find another way to prevent fogging WITHOUT using the Fog City stick-on thingy.
LOVE the helmet itself though! I got the Wine Red on and it's almost a 98% color match to my 07 919! I get comments all the time about the color match! I've had people as if the helmet came with the bike! (Being a smart-ass, I tell those idiots "No, I just bought the helmet and got the bike free!").
If anyone has a trick to prevent fogging without using the Fog City, let me know. How about Rain-X anti-fog? No, I guess that has a petroleum smell.