Brad,
There is new back tee at #18 at Tain that may have been added since you played. It is a fine hole now.
#17.. I still don't get the allure.
#16.. the quiet little stream surrounded by thick, high reeds made me think I might find Moses floating in a basket.
As for the rest of the course, it's not the holes so much (and most are wonderful), but the feel, much of which is due to ancient landscape, the surrounding farmland, and the meticulous care (not to be confused with grooming) of the club's long-time supe. I found it mystical in a way that I never have experienced on a golf course.