Tarp or bothy for solo ski tour?

I have a Rab "2 person group shelter" bothy. Haven't used it much, I just take it along for BC skiing emergencies. It would be pretty floppy and lame for solo use and would be a PITA to get to hold any shape using poles, etc. It's cool with 2 people inside for a lunch break in wind or stormy conditions, and would probably be okay for longer in a real emergency, but I would want something else for solo breaks. Setting it up to lay down in would be near impossible due to the size and shape and total lack of a door. The problem with anything else, I guess, is that even a simple tarp or 'mid would take a while to rig up. Maybe a bivvy with a hoop opening or similar? If you have firm snow conditions, a single pole mid with some snow stakes could go up fast(ish).

I have used Bothy bags a lot back in Ireland
for day trips, they deploy in seconds.

Poncho?

I have a DIY 2-person bivy sack that might work, but it is heavy. I have a DIY cuben fiber ground sheet for my summer tarp shelter. If I was skiing a long tour without real sleep, I would take at least the cuben fiber to put over me or under me.

–B.G.–

If I expected a lot of snow falling it would be a bothy for sure for the shelter.

But, with what I have now I'd take just my TT Scarp 2 fly and main pole. It's a fast set-up with the pole and 4 snow stakes or corner tie-outs on deadmen. I'd sit on my larger winter (18" X 18") CC foam sit pad. Then I could cook if necessary W/O worrying if my skis could hold a bothy up if I did not hold them.

Plus the Scarp 2 fly could accomodate at least 3 people in a sitting position.

So consider taking your tent fly for a shelter. Try it out first so you can deploy it quickly when on the trail.