Tim
A couple things. If you look at the third picture, you'll see that the colors in the horn and the wood match up giving an interesting pattern. A band would have interrupted this. Also, I didn't have a band that fit in the right spot and was too lazy to make one.
The wall thickness of the horn is uneven and so would have been a pain to fit into a groove in the butt. I have used this on a number of screw tip horns where it was called for by school and I really like the effect. If I get my horn lathe done, I'll have a quick, easy way to turn the butt end of the horn. Just need to get motivated.
Thanks for your thoughts. I like to get input.
Steve