Dobar dan, Bosnian Piper!
I like talking with you! I have never gotten close to trying to make a pipe myself, so good job!
Making pipes from different wood types is fun as practice and as decoration and art. When I visited Russia in the 2000's, I got a souvenir pipe with a pretty engraving of a ship. The seller told me that it was only for decoration.
An elderly Russian lady showed me a pipe made in the Java factory in Moscow in the 1980's. It came with an instruction sheet saying that pipes should be made of briar heather wood (vrisak). Having tried different kinds of wood made pipes, I agree with it. The reason is that vrisak/briar, has a good combination of light weight, overheats less, and is not toxic.
It is very useful for you if you can find vrisak on your hikes.
Here is a Wikipedia article on it:
en.wikipedia.org
US producers value it highly, but it does not grow here in the USA, so we import it. My Dr. Grabow pipes have "imported briar" stamped on them. I saw a Java pipe made in the USSR on Ebay. It had "Bc" stamped on it, meaning Вереска/ Vereska / Vrisak/Briar.
I am wishing you the best.
Želim ti sve najbolje.