I can see the dilemma, Kathy. I can't speak for any other writers, but I've never written a story with the thought of having it fit in a specific Kerth category. I've always just written what story was in my head and then wondered if it would even fit any category. And I honestly don't know if what you are saying would work - encourage people to write a specific story to "go for" a Kerth in that category. It might just work.
You face a tough job, and you guys are doing great!
Lynn