[MizunoJoe]

Watching the footage of Trevino is worthwhile, but what McLean says about it may be something else. Some years ago, the front page of Golf Digest promoted an instructional article called something like "Extend Your Flatspot". McLean described this procedure in such a way to promote the idea that the clubhead strikes the back of the ball while moving horizontally towards the target. You can flatten the downswing plane, but the strike is still DOWN and OUT toward low point, and there is no "flatspot" in the arc of the clubhead. I believe that Trevino was one of his examples in the article. I'll bet he uses the word in the show.