Patrick,
Hole yardage on sprinkler heads and in caddy books are to the front of the green. The scorecard is as you say.
Whether Mother Nature dictates or not, my point still stands. The course is rarely, if ever, the full yardage in any competitive round. 7400 yds at Augusta is quite meaningless as a true number to compare the course to any other.
Thank you for agreeing with me re: #4. That hole alone accounts for approx 7% of the yardage differential. As I said earlier...flexible.
Taken from a pure mathematical perspective, each hole should account for 5.55% of the delta between members and masters tee. Six holes would be a third of that measurement. Yet 1, 4, 5, 10, 11 and 18 use up 42+% of that difference. In my mind, that means that Augusta National doesn't have the disparate length problem you say it does. In fact, on a great number of holes, the difference isn't all that bad.
You make the case that Augusta needs another tee set in between masters and members. I say, mathematically, that isn't a great assertion. The disparity isn't all that great except on a small number of heavily lengthen holes.