Yeah Lunar in the heel. Most of the tech would be pretty inline with the xx9 and xxx. The one thing I tried to update in terms of the tooling was using the carbon fiber as a lateral support and a shank in 1 piece. I've seen the Kobe X and the xx9 and xxx all use carbon fiber as a lateral...
Slightly off topic but I did my own version of what I envisioned the 31 would look like and this is what I came up with. Figured I'd show it here since there's been a good discussion about the real one going on. Without getting too into it my model was based on the idea of what would he wear...