Японская традиция внеледовых прыжков

I was thinking of a new surface for training the triple axel, may be using paper boxes on the ground to secure my landings. Triple axel double toe with heads over the head is the most beautiful combo in Yuzuru san free skate, I have to train the double toe with my heads over the head which is a completely different jump for me compared to a regular one. I have no idea of how I should do it properly so that I stay stable and land it safely.