Thanks, bluefish! That all sounds very much like "experience talking". I just got a set of groundhog stakes, and indeed plan to use 4 for the corners, and hope to make do with lighter stakes for the other parts, though it's good to have something solid to hold the vestibules out on both sides too ...
My "cathole digger" is a sand/snow stake, and could be used at head or food end if needed if I really want to save a lightweight stake there, but for obvious reasons can't count on using it for anything really "structural" about holding up the tent.

I certainly agree that it's not a winter tent, unless you're sure that little or no snow is coming! In such conditions, I tend to just a tarp and a little in-the-snow trenching, as I don't own a 4-season tent.