I heard that about his draw poker play. But he did play well in tournaments I was in. His exercises were not always explained as to what they were teaching, but maybe that was part of the lesson.
He had a great idea with the 4 color deck, just didn't give it a fair test (1.5 days).
I had used the same strategy as him when entering a game with strangers. I found people form an opinion immediately and if you reinforce it just a few times, they seldom change their mind later, so it worked for me.