Thanks for the welcome.
The 10.ex flexes stiff but skis very very easily, especially at slow speeds. I absolutely love them in tight trees. And don't worry, they rock at big GS turns as well. No speed limit as far as I can tell. I've never been on so versatile a ski. I've skied the XX tele but not the XXX so I don't have a fair comparison to offer. I really prefer the Atomic.
I do think the 10.ex could use a tip with a higher profile. It's never been a problem skiing crud (and this ski lives for it) but breaking trail could be a bit easier. It's a minor issue but one worth noting. The weight of the ski (or lack of it) however is huge and makes up for it. I really don't mind touring in this ski. It feels about as heavy as a Big Easy or Piste Stinx and still out-skis anything I've been on.
I use BCA Lowfat skins with a traditional tip and no tail hook. All fits well without modification. I think a Euro tip or any other would fit as well.
In-bounds the 10.ex carves like a dream and just eats up crud and refrozen terrain. Its stiffness lends itself to easy air and landings, but the ski gets kicked around a bit in the bumps if you are trying to slither the troughs. Better than I thought it would be though. The G-41 too looks awesome, maybe a bit damper, but too heavy for my backcountry bias. I kicked up to Janet's cabin outside of Copper with pleasure the other day but can't imagine doing that on a G-41. One note: no matter what you think of the factory tune, don't change it! 1 degree base, 3 degree side, and a bit concave (by design?). I can spin 360's on snow with rapid succession without fear of catching an edge, and then carve it up totally railed. There's a few traditional shops around that would ruin that tune in a hurry.
Good luck with your decision.