Oh wow, I have never heard of this method of growing fruit. I will have to do some research. I wonder what the ratio of fruiting is the trees planted in the usual way? I would image that 4 trees planted in a square would probably take up about as much space and product about as much fruit as a regularly planted tree. But with fruiting much sooner. I will have to do more research on this. My brother has space on his land for an experiement too, lol. Thanks for sharing this info!