Not yet mark reading through bit by bit - slower than I’d like at the moment due to little one keeping us up every night so far.
For fruit trees if you want full 7m tall trees do you need a rootstock?
What would happen if you bought a Golden delicious on a dwarf rootstock, took clones off the top and just rooted them without a rootstock? Wouldn’t that give full size plants? It would be easy and cheap to clone thousands that way.