Re: The 4th -- As has been mentioned, the hole location didn't change all weekend, and neither did the wind direction, for the most part. The flag was about as far back on a very deep green as it could go, and I think it was Bill Seitz who got the 245 reading on his range finder. It couldn't have been off by more than a couple of yards. Under those conditions, it was the most difficult par-3 tee shot I've ever played. I did detect a front right ridge that would propel a shot toward that back left of the green, but it wasn't as pronounced as other Redans I've played, and the green sloped slightly uphill from front to back. I'll call it a Redan, with an element or two missing.
The 13th -- I have no objection to the trees. I thought the hole looked and played great -- a true standout on a nine that, for me, does not have as many sear-into-your-brain holes as the front nine. But I'll bet if you took all the trees out around 13 and 14, both holes would be every bit as good, if not better, and fit the concept of the Links Course that much more. I suppose safety could be an issue, but I'm guessing the main purpose of the pines to the right of 14 are to provide a visual (and aural) buffer from The Adjoining 18 That One Dare Not Play Or Look Upon.
I want to second Patrick's praise for the turbo-boost cross bunkers. I benefited from them numerous times when I was able to clear one with a drive, and I was penalized by the one on the left side of number 5 when I failed to clear it. Classic risk-reward stuff, found on nearly every two- and three-shot hole, and about as much fun as a design element can provide. I found myself thinking about all the courses I've played that would be improved by a few of those, and fewer garden-variety fairway bunkers.
I don't have a number for it, but I'm comfortable calling Lawsonia Links a great golf course.