I hadn’t heard about the alternate green for the Postage Stamp. When did that happen?
The Dell at Lahinch used to have a winter green up by the next tee, don’t know if it still does. The 11th there does have two greens now, as Hawtree thought he could improve on MacKenzie.
Others:
Riviera 10 & 16. (Used mostly for Monday outings)
Sandpiper 13
Kiawah Island Cassique 5 or 6 (alternate routings)
Shadow Creek 11
Pelican Hill 12 or 13, can’t remember the #s
In both the latter cases, Tom Fazio built two greens so he could make them smaller, an idea he got from building the alternate 8th at Pine Valley. I think he has built a few others but I haven’t seen those courses.