Have you guys heard of lightspeed headsets? I seem to remember someone telling me they were popular with turboprop pilots. I've only tried one on the ground at an airshow - seemed comfy enough, but I guess you can't really tell without a few hours in the hot seat. Check out <A HREF="http://webwings.co.nz/lightspeed" TARGET="_blank">http://webwings.co.nz/lightspeed</A>
Incidentally, I use a pair of peltor 7004's modified with an aANR kit & they're excellent.