Here are some snippets of the article Mackenzie wrote (I think in 1931), right around the time he was working with Jones on Augusta. Interestingly, in his hole-by-hole description, Mackenzie always lists two yardages/tees: the "Regular Distance" and the "Championship". (On the-then first hole, those were 395 and 420 respectively; and this 25 yard difference seemed to be the average one between the two tees). I don't know how common that was back then, but it seems clear that he and Jones intended from the very start to make Augusta BOTH a members course and a championship test.
"In setting about the task of creating the Augusta National Golf Club course, Mr. Robert T. Jones, Jr. and I have shot at the mark of trying to create the ideal inland course. To accomplish such an aim, one must obviously be equipped with a thorough knowledge of the art of golf course design and be supplied with material with which there is at least a reasonable possibility of attaining that lofty goal....
.. Doubt may be expressed as to the possibility of making a course pleasurable to everyone, but it may be pointed out that the "Old Course" at St. Andrews, Scotland, which Bob likes best of all, very nearly approaches this ideal...
...It is usually the best holes that are condemned most vehemently by those who fail to solve their strategy. Bob Jones realizes this so strongly that when asked his opinion about the design of Augusta National, he said that the course would differ so markedly from others, that many of the members at first would have unpleasant things to say about the architects. A few years ago I would have agreed with Bob, but today, owing to his own teaching, the work and writings of C. B. Macdonald, Max Behr, Robert Hunter, and others, Americans appreciate real strategic golf to a greater extent than even in Scotland, the Home of Golf...."
Peter