Originally Posted by poutanen
Yes and no, if the structure is gone, or there wasn't a good structure to begin with, a base grind can really help with glide in spring slush. Not sure if it has any effect on really cold snow.
A base grind and structure is really going to help break the suction effect in spring conditions. There may well be some advantage in very cold conditions, but my understanding is that there isn't or that the advantage wouldn't be noticeable.
Your best bet is cold temperature wax, but there is a temperature point where the advantages should be described as "beats doing nothing"