Pots, it’s true that yamadori make great bonsai. It is, after all, the foundation upon which bonsai is based.
But, the tone of your responses in thisand other threads is that you feel that ONLY yamadori make good bonsai.
Since you live in Oregon, I suggest that your perception of bonsai is heavily influenced by the relative availability and abundance of mountain yamadori. Please be aware that not everyone lives in places where old mountain trees grow naturally.
And, please consider this: in Japan, there are virtually no wild Shimpaku left to be collected. They’ve all been taken. Most that were collected didn’t survive the collection process! There were so many, you see, they didn’t care.
It reminds me of the bison herds that used to populate the Great Plains. Millions of animals lived in huge herds. Where are they today?
I have rather mixed feelings about yamadori. Yes, our Western mountains are vast, and there are zillions of good trees out there. But, like any natural resource, the number of 300 year old trees is limited. Once collected, it can’t be replaced in a lifetime. Or two. Or even three. Do you want your great grand children to go up to the mountains and see only rocks? I don’t.
Yes, I have a few yamadori. They make up about 20% of my collection. If I was more interested in deciduous trees, that percentage would be significantly smaller!
What’s more, I personally believe that all yamadori collecting should be banned from public property. Think about it: those trees belong to all of us. Any of us can go see them if we are willing to go to the effort. Giving someone a permit to go dig it up, take it home, and resell it benefits that one person, but steals it from the rest of us!
Privately owned property is just that. The owner can do what he wishes. (Within reason, of course.)
On the other hand, collecting a fabulous tree, and making it a bonsai can preserve that tree for a very, very long time. As long as bristlecones seem to be able to take care of themselves? Probably not!
Anyway, Yoda, I mean Pots, I just want to give you some things to think about.