Flatlander, sort of...
We patrol on BC touring skis. Personally, I use either Karhu 10th Mtn. Tours with Karhu Sirius 75mm (3-pin) boots on "Rat Trap" bindings or Trak Bushwacker IIs with Steger or Empire mukluks and Berwyn Backcountry Bindings. I bought a pair of Karhu Karver Metas (Universal rigid binding) last season, but never got enough snow to try them out.
We sometimes stay out on the trail overnight(s). Does anyone else do that routinely?
More info on our patrol activities can be found at www.trailpatrol.org