Yes, but what I'm saying is his overall performance is severely skewed by him playing down to his opponent's level and adopting a brilliant, tho shady, strategy against them best characterized by "bet you can't runout". He plays awful out in the open push outs, rarely plays safe and just takes on all sorts of low percentage combos and caroms against weaker players. Sure he may give up more games than usual, but he will play sharp when it's winning time and still beat them, just by a way smaller margin than he could. He also is quick to throw in the towel against similar speed or better opponents and will routinely let a 6-2 deficit turn into an 11-2 loss. It may look like a hothead on tilt slapping balls around and a symptom of a weak mental game, but this is a seasoned money player who is no mental midget.
If he played all his opponents to the best of his ability and fought back against early deficits (which he is more than capable of doing) and demolished weaker players instead of batting them around like a cat does a mouse before finally devouring it, then he'd be a 670, maybe higher. He has won some decent money handicapped tournaments. It is not a coincidence that he just happens to play much better than his 'norm' in those.
So like I said, this stuff happens. Angle shooters are gonna shoot angles. He is, as one of our mutual friends calls him, "the greatest obfuscator of skill there ever was". Not showing his real speed is just a fundamental part of his game until the money comes out. And even then, he only shows as much as he needs to win with relatively little risk but still keep his customer.