Thing is, as Rick says, we do not know what drivers MGS was comparing to. Rick shows us on video, his comparison club, which is last year's TM model. If he was getting relatively the same ball speed/distance, we can be assured the COR is fairly equal in both heads.
It may well be true that the MGS testers were getting higher speeds, but in order to do that, their drivers had to have 'inadequate' COR to begin with; IOW, not close to the .83, nor close to the new TM heads tested. And something like that can easily be 'set up'--hand picked--, in order to show a product superior to last year's model.
So, do we have outright lies, or outright dishonesty, from MGS?? Either way, it makes them asses. And we do already know....they ARE ass-kissers. I will trust the 1 person over the group. It's what I've found in different driver heads this past season myself.....no discernable diff in any, brand to brand, as far as distance, and that comes right back to...ballspeed, which is how they are sidestepping reports, instead of saying distance.