MACH5
Imperial Masterpiece
Good to know. Ive got a european beech purple cultivar that is early in development.
In the beginning stages of development I believe in heavily wiring deciduous trees to set the design in motion. The idea or goal is to eventually wind down on the amount of wire they receive and lean more on the "clip and grow" method. The downside of course is that you need to be very vigilant of wires biting in.