There are a couple of problems with this logic
The tree isnt in a pot that promotes good growth at a time when it needs it so it takes much longer to progress that tree to the next step.
The pot originally selected ends up not being the right pot when the tree finally is ready for it
You end up with too many pots that you dont have trees for and storage becomes a problem
With a limited budget you end up buying things that arent the best for what the tree needs now and once you figure that out, you cant get what you really do need
This tree isnt in a bonsai pot yet but I get pretty excited when I see it go from this
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To this
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And now this
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Still a long way to go but this year it will graduate from the anderson flat to a large plastic bonsai training pot