The best way to sustain wood is to use it. I make fretboards out of Brazillian Rosewood, and I know the wood is going to stay around. If you hit the tree with a D65 Komatsu, I'm not making any promises. Necessity is the Mother of invention. People will rise to the occasion.
My Mother always said,"The only thing you Monsters understand is PAIN!"
Men of worth see victory where most men see nothing. (That's a loose translation from Sun Tzu's, The Art of War.) Golgogit, are you taking notes?
I gotta go write a thread on the use of Tai Chi principles and Chinese Southern Boxing concepts that are applicable to splitting maul usage. Give you a hint. Do you play golf? It's all about club speed. Multiply that with hip rotation and improve your game. That's why a spinning backfist hits so hard. We have been trying to nail down whipping motion for two decades, also. It's the most effective method I know if you have to break a brick with your hand. You know--Follow Through.
Seek a personal expression, then Practice. Practice. Practice. How else do You explain Edward Van Halen?
Catch you guys later.