Wireme, after I took the picture, we did pull the right lower branch down, almost exactly as you have it.When you say need to replace the soil after 3-4 years how much are you talking about? Bare root to the core? Just around the edges? One side at a time again?
The question relates to trees established in your Boon mix already not transitioning into it.
Nice tree, I like it and what you've done. For some reason I was curious how it would look with left branches trending up and right trending down. So I scratched at it a bit to see and got this far. View attachment 135488
I found a literati of Shinji Suzuki that I like a lot, and I may try for something like this: