Damn nice man. Mine are in the same phase of explosive growth now as well. Almost frightening to watch hehe. Sometimes when I sit and watch them for 5 minutes it actually feels like I can see the top leaves fold out.
This shit will overgrow the world one day and all other form of life will be sufficated.
There might be some small colonies of hippes here and there trying to smoke the world back in order but with this kind of growth even they will loose in the end.