Better acacia farming

So basically I was thinking, add a thing to the data for acacia trees where basically if your bonemeal a acacia sapling that has a acacia tree over it, it checks the direction the acacia tree over it is grown twords (i think that's the proper terming?) and either grows around the acacia tree or grows in a different direction then the one above it, it wouldn't cause lag ( if done right) and it would only be for acia trees because acacia farming isn't efficient at all, and making it so it only applies when the acacia sapling is bonemealed makes it so its less likely to cause lag, and trees grow around each other in real life so it would make the game more realistic