Tom,
Drainage seemed to me to be the biggest headache with construction. Based on what I saw today. Is that true?
I'm sure all that landscaping went against your ideals in many ways. But if The Rawls does become your final dead flat mass construction project (your Shadow Creek if you will), what did you learn?
The drainage was certainly complicated. At the start of the grading exercise, I was trying to get as much contour on the lower part of the course as possible WITHOUT using drainage sumps, and there are not many projects which have 800-foot runs of big pipe laid at 0.5% so that the high end of the pipe could be dug as deep as possible to create some relief. [That's why the 14th hole is so flat, it's at the far end of the big pipe.]
Later on, we realized that the north half of the site COULD NOT be drained toward the big pond on 18 because that would allow flood water that was supposed to go across the site to fill up the "bathtub" in the southern half. Once we realized that, and that we'd have to put in drainage sump pumps in those areas so we could keep the switch off in a flood event, then it was fair game to make the lows as deep as we wanted to. If I had to do it again, I'd use sumps all over the site, and create more sharp little features instead of big broad lows.
Incidentally, The Rawls is certainly NOT our final dead-flat construction site, the project we're building in China right now is a sandbar on a river, that had maybe 6-8 feet of elevation change on it. That one is completely different, because we have to design everything around the inevitable flood ... so the landforms are quite different than anything we've built to date. Even flat sites are different!