You might find this interesting: My idea of weight distribution
I have to be completely honest, I’ve never played with any of Ettore’s yo-yos. I haven’t been that fortunate yet. But the guy is amazing. If he says they play well, I truly believe him.
That being said, I’m not expecting to find any of these extremely rare pieces. He probably only made one of each. I was hoping someone had some of the ones he used to sell on his website like this: