Yep Michael, I follow your train of thought.
Can see some serious advantage with the big fats for those high speed staying on top big turns.
My personal experience in powder at Alta, Vail, and Aspen, was all inbounds skiing with your standard selection of trees, and other skiers skiing and falling around you.
Don't get to much of a chance for the big run out GS turns with inbounds skiing. even the stuff higher up sometimes can be pretty narrow in spots.
Powder technique does require being more centered, upright and skiing your boards flat. Slight pressuring of the edges, compression and extension round off the primary tools in making yahoo turns on a knee high day.
Still I think that the Spat's can be used effectively on crud and mush snow days like I had a Loveland in April 2 years ago. Frozen crust on top with mush snow at mid mountain. Plenty of room for the Spats to run there.
With the nice variety of skis you have along with the broad selection of coverage for terrain and conditions, my only concern would be do I bring a Winnebago or a panel van!
Best Michael..can't wait to turn em loose at the Beav!
Gary
PS I'll check out those web site's and get me some "Spat Education".