the brooks-range shovels are ingenious in the way they have designed a rescue-sled-rigging application into them, and they sell a snowsaw that nests inside the shaft. the only problem they have is that the shafts are circular and therefore more prone to getting squashed and ending up with a shaft that sticks when you try to extend it - so not as durable as a D-shaped or oblong shaft.
the B-52 really is ridiculously big. too big to fit into most bc packs and in some ways too big for practical debris removal, although bigger is definitely better than too small.
i needed a new shovel last season after one of mine with a circular shaft became unreliable for quick deployment, and i went with the K2 shovel. no circular shaft and has sled-rigging.
if you can, take your pack into a mountaineering/climbing shop and check blade and shaft fit.
never buy a shovel with anything but a metal blade, T or D handle is a personal preference but T handled shovels are more likely to be able to be used in a hoe orientation (anchor), circular shaft is a minus but the brooks-range shovel is otherwise so well thought out it could be worth buying, do not buy a shovel with a small blade, do not buy a shovel that does not have an extendable shaft.