For what it's worth, the 7th hole at Machrihanish is a long par 4 over a huge dune (around 100 yards short of the green) to a completely blind, and quite large, green. In the last few years, the club has erected a piece of whiteboard adjacent to the tee; the whiteboard has a circle on it which is divided into quadrants, and every time the hole location is changed, it is reflected by a newly inked "X" on the whiteboard. In this manner, what was formerly a completely blind shot with no strategy now is still a completely blind shot, but it is now one you can play intelligently - if you're familiar with the aiming markers and where the green is beyond the high ridge, you can hope to play a precise shot to the correct location, and even if you're not thusly familiar, you can still favor one side of the green to the other (and also one side of the fairway or the other, from the tee) and try to leave an intelligent miss. THAT is the amount of information I'd ideally like on every blind or semi-blind hole - not a precise yardage, but rather a general idea - and I think that's all Tim is asking for as well.
Cheers,
Darren