I bought a BV2S helmet last year and had problems with the shield freezing up. I tried adjusting the breathing mask in different positions but had no luck resolving the problem. I have thought about buying the electric shield for it but for another $160 plus having to install an outlet on the sled I don't know if it's worth it. I had a Ski Doo modular before the BV2S and had no problems with the shield freezing up but I like the fit of the BV2S so I bought it and sold the modular. I like the helmet but for $300+ I expected more. Any help would be greatly appreciated.