Johnathan
Omono
You are avoiding, or ignoring, the importance of a compact root system that will allow a tree, with a lot of above ground mass, to be supported by a small fibrous root system. This does not happen by itself. Over potting a tree will only encourage large roots that will in the end require a lot of reduction over years of effort. You may have a larger trunk but it will be useless without this kind of reduction that will take the kind of knowledge and experience to accomplish.
My invention that develops find root systems capable of being reduced drastically.View attachment 214117
@Vance Wood I know that you don't generally work with seedlings or trees in a growing out stage, I've seen first hand how beneficial pond baskets and baskets similar to yours are for developing compact roots. It's become my understanding this year that baskets are for trees ready for refinement, not trees still growing trunks.
I know you have a wealth of knowledge and experience, and I'm sure you've done your share of growing out in your time. My questions to you would be this. Obviously, ground growing is the best option. But what would you consider the 2nd best option for growing a trunk? A basket, flat, or nursery pot?