Well, perhaps I can't teach anything, but I would ask why there is generally not more variety in your par 5's and par 3's. I've played 4 of your courses, 2 early ones (Riverfront and Charlotte) and two elite ones (Pacific and Old Mac). Old Macdonald had little variety in the par 3's in the summer wind (I hit 3 iron, 8 iron, 6 iron and 4 iron) although I do think these would have better variety in the winter (although few people see them then). Pacific is somewhat the same, the par 3's do have good variety in the summer (which is I suppose what you want) but far less variety in the winter, yet the par 5's have very little variety, all are reachable in the summer wind, unless you are playing 3 and 12 into a 30 mph wind, in which case 15 and 18 are easily reachable. However, in the winter, those become very good variety.
I don't know, I am kind of rambling here, but I see that even at your elite designs, there seems to be a slight lack of variety in playable length on the holes. I suppose I just wonder why that happened and if it is different elsewhere...