Are saying the discoverer s/t isn't a good snow tire? Or just not rated as one? My personal use they are awesome in the snow, and about average on ice. I tried a few different tires this past winter that were recommended to me by a tire shop and returned all of them. Needed to be in 4 to go anywhere. One set was firestone steeltracks, hancook dynapro atm, and then toyo tuff country. Put the discoverers back on and only needed 4 twice. Even drove through a blizzard with knee high drifts leading the way for my buddies f250, who got stuck. I was in 2 wheel, also had 700lbs of dirt bikes and sand in the box.
Hope this post doesn't come off negative, just sharing why I believe in the discoverers. I will deff look at the tread you suggested when the time comes.