Its all about Shaping thru Pruning isn't it ??
The movement in the trunks...that's so rare to find in material...this is absolutely one of my favorites!
If I can tell that the tree is very vigorous despite having been repotted in spring I often still doit. But in gneral I WARN people to do it. You need a lot of experience.Walter, may I ask you (sorry if it was already asked) if you do full defoliation even on the years when you repot? Thank you!