Tom, you make a good point about CAD, but remember, like a dozer, it's just a tool. In the hands of a rookie, it can be just as dangerous. I've followed this thread with some interest as I've done it your way and I've done it JB's way. I've come to the conclusion that a) given the chance, give me a dozer and I'll shape it myself. It takes about as long as doing a 0.5' or 0.25m 30 scale green detail. If I have a contractor, AND I know I'll be onsite, a 2' grading plan is enough. He can get his quantities and rough it in from that. then I can work with a shaper and get it finished in about a half day. He makes money 'cause he knows that when I walk away, he can immediately move on to finishing the complex. Or if I must do details, I prefer to wait until after the green has been roughed-in. Then I'll do it, incorporating any field modifications.
But, I have to say, the best ones are the ones that I have the most on-site time with. But, I can afford to spend the time because I don't have an office to run and employees to babysit. And my clients get exactly what I want, not what some associate "thinks" I would like, or something he likes irregardless. Plus, conflicts are non-existent. Many times, I have stopped a shaper saying, "stop, don't do anymore, I like it just like it is". I call this "what just fell off the blade". It may have nothing to do with what I was going after but...it just fits, so we go with it.
One problem with detailed plans is, when you field change them, unsavey owners/supers, will question it. They think plans are "cast-in-stone". My dad has a favorite way of explaining this to owners. "Plans are like Michelangelo's sketchbook, but when he put his chisle to the marble, the veining told him which way to go. And in the end he got The David". Golf course design shouldn't be paint-by-numbers.
Also, contractors HATE it when they are told "get 3 or 4 shaped then I'll come out and tell you what I don't like." This 'hurry up and wait' is a schedule killer. Plus, the uncertainy of how much rework will be necessary and will it require an addition site visit. The material costs are fixed so the only to make money is to get it done as fast as possible and messing with the schedule is messing with the profit.
Here's an illustrative story from a Big contractor. During the end of the 80's, they were doing a job in AZ for a Big Name designer. After getting several greens ready, a Design Associate (DA) flys out. He doesn't like one of the greens and thinks a different green would work better. The contractors super is pissed and says, "I built what you drew, I don't have a crystal ball, if you want something different, build it yourself - I'm going home". The next morning, the super finds an entirely different green complex and a note on the seat of the dozer from the DA - who had flown back to NC. It says, "Liked the first one better, can you put it back, I woulda, but it got dark, thanks - see ya in a month".
As far a contractors and quanities go here are some stategies. a) stake out the greens perimeter and then move the stakes in 1". you now have , on a 6000sf green 300 sf to bank. You can even take this one step furtherand cut the core at a 45 degree angle. This will save another 300 sf of materials but keep the "mowed" green the same size, since the collar will be on the angled section. USGA purist will cry but...I have never had the USGA offer to make up the difference.
b) show more bunkers than you really need, Then if you need something to "trade" convert some to grass hollow. They already have drainage, so it works fine. Plus the super will be happy cause it's that many fewer bunkers he has to maintain.