Berks, My suggestion would be to make it the way you see fit and of course, do the best job you can in that light. They will sort out the what category it belongs in. I have only submitted horns twice, some years ago, I was fortunate to win a blue ribbon the first year for a horn set, and a red ribbon the second year for a hunters blowing horn. Even when you win, they include a critique with your returned horns, and in my case they were spot on. In fact, the only criticism on the blowing horn was exactly what I was trying to achieve, So even though it was a fault to them, I felt pretty good in that they saw what I was trying to do.
I didn't make them to suit anyone but myself. Best of luck to you!!
Robby