CW,
What kind of hole is 9, a par three? How bad is your sand game that you were in the bunker in two, down in nine? I'm a big fan of creative greenbuilding on flat land, having grown up in the flatlands surrounding Buffalo, NY. South of the city are hills, but the first three rings of suburbs are pancake flat. We typically find, thanks to the uninspired William Harries, a circular green sloped back to front, with bunkers on either side, an open run up area in front, with little movement on the green itself, on our municipal courses. In the last dozen years, thank God, a number of privately owned, public access courses have opened, giving us much more diversity and quality. Our private clubs are strong, with Travis, Ross, Tillinghast, Colt/Allison and a tranquil RTJ Sr. represented.
I don't have anything to add to your quest for inspired greens on flat courses, although I won't stop looking.