Thanks for the replies so far. I wasn't thinking about holes that merely have varying angles for the forward, middle, back, etc. tees. I've seen that before as a mechanism to adjust difficulty to match playing skill. For the most part, those tee positions are fixed, so if you play the back tees you will never see the angle created from the forward tees. Rather, what I was really trying to get at are holes which have what amounts to duplicate sets of tees where all tees (shortest through longest) could be moved on a daily basis to adjust the angle and playing characteristics of the hole. Its the par 3 equivalent of an alternative fairway or green on a par 4 or 5. Or taken to the extreme, like designing a hole that can be played in reverse. I realize there are potential problems with this concept (e.g., higher maintenance costs and greater the distances between tees/greens). But has it been done?
Ed