Just thinking that might be a new thing to try. I’m up in GM in March. Might give it a go one night. Keeps you out of the wind!
I look thin and young, 9 years ago (I’m on the right of the picture)
EDIT: I must have been tired last night and not thinking… There’s not likely to be many Snowhole based activations as very few good snowholing sites will be within summit AZs. You need a good leeward slope (without a dangerous drop below it) so typically they are in small river ravines. There’s nothing to stop you doing a portable non SOTA qualifying operation though.