I love all of Waitzkin's stuff, I've spent many hours under his tutelage via Chessmaster, and I've followed his subsequent career with interest. But am I correct in remembering that his fundamental disillusionment with chess came when he had to start learning positionally and strategically instead of tactically? I do agree that people should spend vastly more time on endgames, certainly more than they do on openings, but I'd always thought of him as a buccaneering, tactical player, and that colours a lot of his advice.