This looks like a good set of videos by Sony Le (I think he lives in Georgia):
Repotting:
https://www.youtube.com/watch?... surprised what mix he uses, but gets great results.
Pruning:
https://www.youtube.com/watch?...
Root Training:
https://www.youtube.com/watch?...
There's always more than one way to do something, and different "schools of thought".
I'll take all the advice here into consideration as well, but develop my own
technique as I like to experiment.
The only cardinal rule seems to be "Never, ever over water!"
