if you wanna train them you gotta get em thirsty. as long as the cells are engorged with water the chance of breaking is quite high.
you may also be interested in bonsai techniques of tying a branch to the pot and progressively turning/shortening the wire with a little stick, making sure to wait for it to be "lose" again until you continue. when you do this make a wire hook to attach to the branch, dont wrap it around, you could choke it out
you may also be interested in bonsai techniques of tying a branch to the pot and progressively turning/shortening the wire with a little stick, making sure to wait for it to be "lose" again until you continue. when you do this make a wire hook to attach to the branch, dont wrap it around, you could choke it out