When the snow is soft, flukes work much better, and yet I've talked with many people who say they never use flukes because, "they don't trust them". Granted, the chances of an unarrested fall are less when the snow is soft, but I've seen many cases where you have soft snow with a crust on top that would allow a body to slide and yet prevent self-arrest. So I'm trying to get at the reason. Is it a misunderstanding of when and how to use them, or is it just that the situation where they are useful doesn't occur frequently enough to justify carrying them?