I have also obtained a pair of Canadian army Mukluks which I’ve tarted up a little bit.
Unlike the Pac boots these are in no way waterproof, trading that for increased breathability in lower temperatures.
The character of snow changes dramatically at about -10°c. Colder than that it tends to be quite dry, above that it melts easily under pressure and in contact with boots and cloths making everything much wetter.
The Mukluks serve well in temperatures of -10°c or below but for the tricky “wet” and slushy cold temperatures of +5°c to -10°c then I can change over to the Pac boots.
Having dispensed with the synthetic liners that Baffin supply (Thanks to the UK distributors for their complete lack of help and service.) and replaced them with far superior and cheaper wool felt, it now means that both pairs of boots share the same liners and insoles, which helps considerably with logistics.