rulie
Head Pro
I know this will sound heretic, but why no expand the 6" to one club-length (which is common in many parts of the world)?I just wonder if this could be a sensitive topic during the preferred lies period, where the relief area is often only 6 inches. At many courses, frequently a wider relief area would be desirable, as it can be difficult to find a decent piece of grass to place the ball in. If a player conveniently doesn't mark the ball, and then estimates where the reference point is, I can imagine many will find it much easier at finding a nicer area of grass to place their ball.
I suppose I'm a little surprised that the rule isn't that the ball should be marked by default, unless in doing so would not be feasible (and give examples in the Interpretations). But, I'm sure the pros outweigh the cons. It'll be interesting the day when one player accuses another of clearly not being able to pinpoint their reference point on the many preferred lies during a round, and taking it to the Committee to rule on.
Regarding your dispute issue - the Committee just needs to ask the player, did you use your reasonable judgment to estimate the spot?
Cheaters will cheat, but the Rules are based on player integrity.