Don,
What I have is a couple years old…the version before they changed the name to “Superior”. I think they were called UL Down Pants, but I’ll be darned if I can see how the design has changed…they seem pretty much the same as the Superiors. They are not exactly “utilitarian” as they have zippered pockets, a zippered fly and snap waist. I really dig the snap and fly, but since I ALWAYS wear them under my hiking pants (for the added protection) and only in camp, the pockets are pretty useless to me. 20d inner and outer fabric, 2 oz (IIRC) of 800FP down and about 9.8 oz total weight in size XL.
These replaced a pair of 2008 Montbell Thermawrap pants (which I will probably put up on Gear Swap soon) that had the “7/8 length” side zippers, eg. do not separate all the way to waist. The Thermawraps are a joy to don/doff. My experience with them makes me say that if you don’t want to take off your boots, the side zips are pretty sweet. For me, they don’t justify the extra weight.
I love Montbell stuff…everything I own from them is exceptional, and it just fits well. The down pants are no exception. I can’t see how you would be disappointed with the Superior pants.