I will definitely use mine! One of the reasons I like curly birch and enclosed tangs is because in winter metal handles including exposed tangs can make handling a knife very uncomfortable, even through mittens. Curly birch has a warmer feel to it than many other handle materials I have used, with the added bonus of being really light weight. Puukkos like this have fully-enclosed tangs. Great combination.
We are not often out when temps drop below -20F, but are often out at temps above that. Right now my main winter users are enclosed tang fixed blades with rubber handles and spyderco folders with FRN or G10 scales. None of this Ti-RIL stuff

Definitely NO flippers! Spyderhole is easy to open with mittens on. Fixed blades even easier. Puukkos with dangler sheath work great and M4 is awesome! I am looking forward to it. Don't expect pictures though - I don't usually carry a camera and don't mess with them if it requires taking my mittens off