I'm imagining a time when growth is so quick that if you try and train them, you'll pick a top to cut then find that all four have grown up beyond it before you've even finished the cut.
You try and tie a branch down and it just bends round from the tie and shoots straight up again.
Keep training them and I'd imagine you could get 50+ growth tips, all 6 feet tall with 4 foot colas on each one
