Brad is the whiz when it comes to insights on our many great courses here in Mass.
#13 was a redo a few years ago because a fly by night irrigation company busted an original iron-clad drainage pipe, back in the nineties, and turned our left rough into a mini-pond bog area. Long story short, it took many years, but a fix was commissioned. The good...trees were cleared on the right side of the hole and some gravel laden rough was cleaned up. The green complex (superb) and the fairway from 75 yards in from the green was left untouched. The bad...a tee water hazard was put in on the left side (blind shot from the tee) where there was once just rough. It seems to be a magnet for balls. The fairway was pitched left to drain into the hazard, but not quite enough. Consequently, drainage is still very poor, and the fairway grass has never really rooted. From the tee the hole feels like a misfit to the rest of the course.
#1 and #2, although relatively broad and plain, give the player two holes to warm up. But if you hit it in the rough...a likely bogey on both.
#14 has had a bunch of trees removed and the new sight lines and access to the sun are top notch.
I would beg to differ on hole #6. (see my film DVD extras on this). It is a straight line from tee to green, but Ross winds you there with a graceful 'S' curve. You can bail out to the right, but have 165-185 in over a trap to a green that goes hard away from you. Or you can hit your second shot from here short of the green left, and have a strong chance of an up and down. The play I like off the tee is to draw it slightly around a testy little cross bunker on the left that leaves you a 135-150 shot in, great angle, right up the shoot. The hole is blessed with a beautiful granite ledge on the left side adjacent to that cross bunker. Recent complete tree and brush removal greenside right has added to the hole's lustre.
The high left granite tee you mention Brad, was not original Ross, but rather an add on in the eighties for outings, I believe. Not a great angle, and has been mothballed along with similar add on tees right on 15 and left on 18. All good calls to let them grow over.
Most folks think our signature holes are two par threes...the 4th and the 17th. They often appear in trademark photos.