I feel I should post another update. Last week, we reached freezing temperatures and even the mighty Pinlock fogged on the inside. It seems the weakness is that even though it can trap the pocket of air over the surface of the visor, it then covers it with another surface which is perhaps less likely to suffer fogging, but still relies on chemical coatings which can only prevent so much.
I'm looking into the Foggy Mask now, too. I think diverting as much condensation from contacting the screen in the first place makes a lot of sense. I'm surprised more manufacturers haven't figured that out.
My GF's Scorpion helmet has that fog-resistant visor and that little piece that diverts air from her nose and mouth away from the visor itself. She has way less of a fog problem than me. I envy her gear on all fronts. I helped her pick it out and know way more about it now than when I got mine years ago. Anyway, I just found out the pinlock system is available for my current helmet, so I may jump on the bandwagon and give that a shot.
I rode around out there this morning (around freezing) for about half an hour with the visor completely closed the whole time and noticed only a tiny amount of fog at the top of the visor (where it doesn't impact my view) while riding, even at the longer red lights.
I also kept the visor down while fueling the bike and that was the worst it got, and it was a fairly mild fogging that cleared as soon as I got moving.
I'm satisfied, it's a significant improvement (I may have to order one for my other helmet) definitely worth the money.
I am going to have to monkey around with it a bit as it interferes with the speakers and mic for my Bluetooth stuff a bit, but not a deal breaker at all.
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I received my Respro Foggy Mask yesterday night and used it this morning to commute under a bit of rain. Works perfect. No fogging at red lights anymore.
Only con point I noticed during that one ride was that when I checked my blind spots at freeway speed it redirected the wind straight to my eye. I hope I can get that away with a bit of position adjustment.