What kind of experiences do you have with pipes that have narrow chamber (16mm or 0,63 inch)?
Many danish pipes have narrow chamber.
Mind you, I’ve got diddly for experience to many here, but…
The relationship of width to depth plays in, I’ve got some narrow chambers that are deeper than others. I’ve found that no more than approx 2:1 relationship of broth to width is easiest for me to pack and maintain a smoke with most blends.
Learning how to pack the bowl was WAY more important to my enjoyment than the chamber dimensions.