Phil, I can't tell you about smoking one- it's the second horn I made and they're both going to the West Coast Pipe Show in November. That's the problem with making pipes- if it a good one, I sell it. I end up smoking the ugly pipes and the mistakes like where I bore a draft hole through the bowl and patch it with a briar dowel. As soon as I hit my goal of 30 pipes for the show, I'll carve something unique for myself- 19 more pipes to go!
A couple of posts I read on smoking horns said that they are not difficult to smoke...and are not prone to burning out on the top...