I do a 36 mile RT commute on my Mukluk. Tire pressure depends on road conditions. 8-12 or so if I'm in lots of soft gravel, snow etc. If things are dry and firm, I add pressure.

I made some studded tires for it by running screws through from the inside and running them tubeless. This has worked great on ice and snow/ice combos. Unfortunately, I did an extended commute (53 miles) with much of the route being dry and the screws are pretty much worn off.