And I did! We went up in mid-September. We got an almost incredible package deal through 'Island Resort Casino', the Potowatame Indian Reservation, in which we played Greywalls and Sweetgrass, stayed two nights, and got a large array of freebie gifts in the casino for around $250. Call them if you go up there, or look at their site for the packages. We had a great time.
Greywalls is a MUST see. Surpassed all other Michigan courses we have played by a large margin. Wish I could play it more often. It seemed most holes begged for a ground game skill to be demonstrated, though you could also come in high. The greens, as all up there, were very hard underneath, so it was not easy to 'high ball' to get close, or even stay on. The course is a visual wonderland too. I loved the tee shot at #5. A blast.
Sweetgrass was a very good surprise too. It was two months open when we played, and the fairways and greens were perfect. The rough had yet to grow in quite as well, but that always takes a year or two. This is an open 'links style' that I suspect many here will like. I think it will challenge you from the tips, too. Definitely play it while up there.
As well, play Timberstone. It is a more old fashioned tree-lined course, but quite a superior version of it. More elevation change than Black Lake, but not quite as difficult IMHO.
Fun to put all three quite differing courses into one trip. UP is now a destination, for certain! Greywalls is the best, for certs, but the other two are more than worthy of a play.
Doug
PS: Glad to be back! Missed some good folks here.