David:
I'm pretty damn sure I know exactly what Miller was trying to say when he mentioned "fault line" on a green (and I haven't even read the article). I've heard Miller mention a "fall line" on greens before in telecasts and what he meant was that line along the green from which putts break off or away from. In that article he probably just called it a "fault line" because Johnny really isn't any great Alister Cooke with his use of words, you know?
Matter of fact, I've only seen Miller one time in person and this very subject just happened to come up. I was standing out at the 13th green at Aronomink about two days before the Senior PGA Championship. The course was really wet, completely soaked actually, so it surprised me to see this guy rush up in a cart (since few carts were allowed on the course). Miller jumped out, rushed over to the green, pulled out a little notebook and started sketching and note taking. At first I didn't even recognize him because he was much bigger and taller than I though Miller was but since we were about the only people out there I went over and asked him what he was doing. He said he was basically taking notes on the contours of the greens and doing a basic sketch of the contours so he could report it better in play during the tournament.
We talked briefly about what an interesting green it was and he said he certainly thought so and he was really impressed with how interesting most of the Aronomink greens were. Then he said he particularly thought that "fall line" that sort of curved through the middle of the green would have a significant influence on approaches, recoveries and putts.
I should've said; "Do you mean "fault line" you dumb clod?" He probably would've said; "Fall line, fault line, what's the difference?" At which point I should have exploded and said;
"Look you big blond bozo, maybe you could swing a golf club OK once but if you're going to be a decent national golf commentator, I, for one, have a bunch of fellow travelers on GOLFCLUBATLAS.com who are going to be driven crazy by this kind of lingusitic imprecision and one in particular in California who a few years from now will likely stay up nights trying to figure out whether you're talking about a ski-slope, a golf green or some point at which a catoclysmic earth-shattering catastrophe might take place in Southern California, so get this "fall line" or "fault line" thing decided on and completely defined to my satisfaction right here and now!"
Unfortunately, before I could tell him all that he was back in his cart and out of there as fast as he came without even as much as a "by your leave" to me!