I'm not 100% satisfied with the Cardo Scala system I bought and installed in my helmet and my wife's. Wind keeps activating the intercom system, even with the face shield down. No way to remove only the microphone boom for solo riding (don't want to unscrew the entire base unit.) Blue tooth connection with my cell phone seems to be hit or miss. Works great when I test it out in the house but my wife says she's called several times and I never heard the ring. I'm wondering if anyone can give me their input, good or bad, on the NCOM system offered as an option in Nolan helmets. Does it have similar problems as my Cardo system? Thanks!