Yeah when I break a plant and it can't easily be masking taped back together so I lose a section there is always a large amount of growth really fast. I believe this is because there is a large offset of roots to foliage so the plant has a lot of resources to repair itself. It's the same thing with using the topping method to top the plant when it has 5 nodes but top it at the 3rd node leaving 4 side shoots as the tops (1st and 2nd set of nodes) because again in this case also you are leaving a lot of root mass offset for the plant to quickly recover foliage with. It's great fun to watch the first few times