I received prototypes from Hspin a day after the contest started.
They were TINY. It is one thing to guess and check from different yoyos but the combination of 50mm diameter and slimline made it truly seem like a miniature.
The weight distribution made them feel like solid rocks but spin times were less than adequate.
Without a fully thought out response system, they burned through duncan pads in ~10 mins and peeled almost all other pads right off in a matter of throws.
Frank from Difeyo gave me some great, basic advice on weight distribution (which you can see reflected in the future).
Kyle weems also cut a few of them for me in order to get the gap a bit smaller (go go mod workshop).
Mostly, I hid them from the public in shame.