While technically it is a cross over, I don't consider tee over green to be a true cross-over, not in the same character as some of the holes mentioned.
JC-S,
When I visited St. Andrews in June-July 1996, I was quite taken with that area of the property, spending a lot of none golfing time out there as well. I would grab a couple of those in the plastic container, egg sandwiches and a couple of Diet Cokes and walk out there and sit in various locations of the gorse and just watch, gaze, study and wonder. I'm not oging to say that this is the norm, but each and every time, I was amazed how each group would not interfere, and nary a wait on the 7th & the 11th. The timing was uncanny.
Another GREAT, and I mean GREAT cross-over is the side-by-side 5th & 8th on the Eden Course. While the holes might be called repeticious by some, I can honestly say I thought both of them had their own very unique character.