Tom Paul,
Obviously, those in charge at SH are aware of their trees. As I said before, it appears that they exericise a great degree of tree care as the canopies of each and every hardwood has been lifted nicely. Also, understory saplings and evergreens have been eliminated entirely, it seems. Its not that they don't know that they are overtreed like so many courses today. Special attention has been given to each and every one of these specimens. Though clean and pretty, its too bad because, many angles have been eliminated, site lines are obstructed, and it appears almost as suffocating as Oak Hill.
As for the bunkers, I read a report one time where an architect was planning to redo some old Maxwell bunkers and he used the SH bunkers as a template/model to go by. He described Maxwell bunkers as "saucers", just as you described the SH bunkers as "little round dishes". Too bad the architect used Southern Hills as an example and too bad he ended his due diligence research there.
I believe Tom Doak described Maxwell bunkers as "charismatic", a design facet that he picked up from MacKenzie during their collaborative years. Old images of the original photos at Old Town reveal the charisma, personality, and charm that Doak described.
Dunlop