Shoei RF-1000 fog?

I just bought my first bike, I also just bought my first helmet. I bought a RF-1000, and I love the feel of it. I hate the fact i can't put the shield down, because after my first breath the shield becomes covered. They told me when I bought it, all the air vents prevent the inside from fog, WRONG!!! Even at 50mph, same thing happens. I have tried every fog wipe, spray, whatever, and nothing, I mean nothing works.

Anyone had any luck with the PinLock shield system???

tom