I agree with the one you found and marked.
Tho I do think you have a 5% chance of finding something 10% better. Where "better" can be be anything from lighter, to branched.
Learning when I can take straight material and chop it to create tapper.
I believe this is the most slippery slope.
Timewise especially, with aesthetics hot on its heels, due to the timeline.
So the best future D's will come from those who are patient with the timeline.
Too often the second chop is made to early, ruining everything.
I believe there is also this thing where humans see a rootspread perpendicular to the trunk and we "see" what should be a trunk going up for meters. So chopping these and inducing movement 2-6inches up doesn't work for our brains. As far as seeing a large tree in miniature, we still see a chopped field tree.
That said, the best D's will NOT have roots perpendicular to the trunk.
The exception is trees like "piglet" which I believe is Mach5's now, and trees like Walter works on with Sandev.
Those elephant foot beast carpinus.
Trees like that carpinus you pictured....
They will be an excellent generational project, 100's of years.
I believe anything with a good root spread (not that carpinus) is worth collecting so long as we remember the timeline for development can be from 2 to 100 years. Start with that plan, and continue it.
Sorce