Just a quick answer to some of your questions-
Several wondered about fuel level in the canisters... I ran them from full to empty. Each canister was designated a stove, ie I labeled one for the WindPro and one for the Reactor. The Reactor burned a canister to completely empty having been used only in the deep freezer conditions; the WindPro likewise burned all its fuel. The WindPro distinctly burns better at the higher end of the temperature range of testing... see the very last chart of the article, where the temps hovered around freezing.
Tad, I've seen melted pump parts before, no doubt... but as mentioned, that's due to operator error. If a stove isn't properly maintained and has leaky gaskets, well, yeah, you'll have problems. With the most cursory, occasional eyeball maintenance I've never had such a problem in over 20 years of using these stoves. Scouts... Hey, I'm an Eagle Scout... I know about the Scouting system, and the kids I went though with and have taught since, well, I know they could find a way to bugger something up given the opportunity. We always just deeply stressed responsibility and respect; it's on the kids to act like adults, in a sense. But, yes, I generally recommend canister stoves for 3-season Scouting.
HJ, I've found that pressurizing ANY nearly-empty white gas bottle takes a whole lotta strokes. I'd guess that a MSR 22-ouncer at 1/7 full would take around 200 strokes for full pressure, though it would certainly operate with fewer... note that the Muka would probably also operate with fewer, though, for both, perhaps not as "optimally." I didn't keep the xpert in because, first and foremost, they're not made any more. My recolection is that it also took the longest of all the stoves tested to reach a boil in the severe conditions outlined... I'll see if I can find data from the xpert just for grins-
EDIT: Oh, just a note on operational "friendliness:" I never bleed the pressure from my white gas bottles during a trip. I pressurize the bottle, use the stove, and continue pressurizing as needed throughout the trip. End result, I never have to start "from scratch" to pump a bottle all the way up, maybe 40-ish? strokes? Never bothered counting, wasn't a big deal-