Those look pretty interesting. But around here the snow is usually only 4 to 6 inches deep (and that's only around for a week or two each year). So I pretty much always clear the snow (if any) and pound the stake into the ground. My problem is more with frozen ground. Of course those SMC stakes do look pretty strong so they might be what the doctor ordered from that perspective.

I've been thinking about those Lazr Hi-Vis titanium nail tent stakes from BPL. They look like they might be strong and the fact that the guy line goes thru a hold in the stake rather than just under a shepherds crook (like my current titanium stakes) makes them harder to lose if the wind does pull them out.