You know - in dry cycles, or thaw/freeze cycles, when the base becomes rock solid, and you can't effectively carry a blade of snow (the teeth don't even want to bite, and when they do, you dive in and dig up huge chunks). How do you rejuvenate that surface?
If time permits, I like to do a full rebuild. Tiller up, just rip in hard and carry a full blade windrow to one side, then back to the other. Give it a little time to set up, then till it out, carrying a blade as usual. It might come out a little chunkier than desired, but at least it's not boilerplate.
Other ideas?