This case study shows the collection of a Hawthorn tree and its training as a double-trunk style 名媛直播. After being spotted the tree was chopped back significantly and left to recover.
About a year later the Hawthorn bonsai responded well and started growing strongly again. In order to force the tree to grow a dens root-system a trench was dug around the tree, cutting through its thickest roots.
Pictures 1 and 2: the yamadori plant in nature