Yep and most people don't carry a low pressure gauge so that is why I say you should see a wrinkle. Softer the snow the less air you need..considerably less. Firm snow more air but tire should still wrinkle a bit. Same thing goes for riding sand dunes. Which need either to be frozen or after a good rain storm. Now that is a fun fatbike ride!
Sent from my SM-G935V using Tapatalk