A little tip to keep your microphone clear from makeup are these new little caps for the element. Even if the mic is water or makeup proof, it's a good idea to use these to breakup any mass that might end up blocking the element. It's the WSC Windscreen Cap and fits over the lavs...
Hey there Big Nick -Humidity is no problem! A waterproof mic can handle water, sweat, makeup, and 110 drenches for Singin' in the Rain. Check out the video http://www.point-sourceaudio.com/customer_reviews/microphones/ The Paris theatre is using the CO-8WD headset mic but all of the SERIES8...
Hey Gafftaper!
Glad you got a kick out of the soda demonstration at USITT! If you can provide us with your contact info we would love to set you up with a demo so that you can try out our mics first-hand!