Well, I sprung for a David Clark Helmet today, after windowshopping them for a few days. I've got some Flightcom ANR Classics that are compatible.
I brought my headsets into the store and actually tried installing them in the helmet to see how they would fit. The comfort was surprisingly high. I got a snap on visor too, since you can't wear a ball cap like I normally do.
I asked if they sell many, and they said a few hundred a year. (This was at Northern Lights on Merrill field.) She said pilots will come in and buy two at a time at the opening of float season each year.
I just started this thread to see what experience anybody else has had with the DC helmet, or others.
Hope everyone else's weather is better than ours
-DP



