Japanese Maple Repot (Nursery to Bonsai Training)

How do you transition a tree from a nursery into a first trainingspot? Step by step explanation how you reduce a rootball to fit the first pro bonsai pot. 0:00 Acer palmatum 'little princess' Japanese maple 1:00 Substrate for Japanese maple at a nursery 2:00 Explanation Repotting Nursery Japanese Maple for Bonsai 2:50 Checking the Nebari 3:45 Reducing rootball 8:07 Clean out core roots 13:25 Detailed root pruning on Japanese Maple 17:10 Pruning roots below trunk 18:48 Potting Japanese Maple Bonsai Stock in training pot 24:15 Plant your pre-bonsai deep for better Nebari