TMac,
I guess that you never pushed it a bit right on #s 1, 4, and 9. Perhaps you just piped it down the center curving the ball in the shape of the dogleg. Not me. I fought from the ground level limbs of your beloved spruces all the while cursing the well-intentioned agronomists who planted them. Even Weiskopf had the good sense to plant hardwoods though he was crazy in their placement.
As to my preference for Scarlet- Nicklaus or MacKenzie, I vote for the Good Doctor without hesitation. The course is plenty long for me, and less rough, fewer trees, and beautiful scraggly bunkering is right up my alley.
Of course, Scarlet is no more MacKenzie than the U. of Michigan layout is, and perhaps it should not be characterized as such. I know of several routings down here done by an architect who gets no attribution for the courses. Even before the current renovation, Scarlet was also a longer, more muscular course than any of MacKenzie's I've played.
Unfortunately, people like you and me are not the only constituents of the facility. Scarlet is first and foremost a competition course. The Grey is for students and the less proficient.
They've been adding length on Scarlet by building new tees since at least the time I was there in the 1970s. BTW, is there a card of the course on MacKenzie's routing? I would be curious to learn what the original yardage was.
As a competition course, Scarlet has had to keep up with the changes in the game to remain a credible test. ANGC has done the same thing, and it is often criticized here and elsewhere for the modifications. Other MacKenzie courses like CPC, Valley, Meadow, Pasatiempo, Jockey, etc. seemed to have resisted making the changes, but these are not courses which regularly host high-level competitive events.
I too would be interested in your take on how the changes will specifically affect the course. It seems like the new angle on #1 will actually make the hole easier by taking out part of the sharp dogleg right. Ditto for the drive on #2 as the left bunker will not be in play as much. A longer #17 might require a tall protective fence for the cars comming down Kenney (sp). And a #18 tee south of #17 green will make the dogleg much sharper and difficult (I am assuming that they didn't take down the large trees in the inside corner).