I'm pretty sure as long as the ball doesnt have a balance hole and the cg is within 1 inch of the center of grip, it wont matter if it has the "usbc" logos on it should they adopt those rules. I could be wrong, but missing the logo, especially since the differential of that ball is in range, shouldnt be a reason to keep it out of play. Of course, their whole proposal is crap, so I guess this wouldnt surprise me.