Ken,
No problem, all is good. I am just adding your experience to my data point for any future designs.
Ever since Audubon International and others came up with 90 Acres as the ideal amount of turf, figuring where to best use it (where to squeeze the bottle) has been an issue. At Firekeeper, I kept a 20 yard wide band from middle and front tees to landing zones, since one study showed about 1 in 4 D level players tee shots are muffed less than one hundred yards, so any forced carries would immediately cause 18 lost balls off the tee.
So, the question is, assuming some kind of environmental or budget limit on sprinklers, how wide should landing zones be to more than make up for those lost 18 balls - and more - to accommodate average players?
In a typical residential project, like Colbert Hills, where there is some obligation to keep balls from exiting the golf course to neighboring property, the minimum width would be 300 feet/100 yards up to 400 feet/133 yards, with about 115-120 yards currently "standard", according to most sources. Traditionally, we use less width to merely contain golf balls in turf, because there are fewer safety issues.
Statistically, 97 yards contains 92% of full tee shots, or about 5 per group over 18 holes, which requires five sprinkler rows. 86 yards or 4 sprinkler rows contains 88%, or about 7 per group, and 70 yard wide corridors causes average 10 lost balls, 65 yards wide about 14 per D player group, all less than expected from keeping the "bunt ramp" from middle tees to LZ. Site specific design (perhaps forced carries and wider LZ on cross wind holes?) should be considered.
Of course, we could make life a lot easier for the D player by convincing the owner to spring for 75-100 more sprinklers, (or about $100-$150K right now) used almost exclusively to widen the slice side of all fairway landing zones from 120 to 260 yards by one row, and 20 yards. An 86 yard wide corridor should be shifted to the right to accommodate the slice, split approximately 38 yards left/48 yards right of hole centerline for maximum containment. Some owners throw nickels around like manhole covers, though.
If I ever get a chance to design the next residential course, I think I will take Ken's comments to heart......and try to convince owners that more sprinklers and turf is a good idea. It would also help where possible, to use drought tolerant turfs, so you could mow wider with only minimum overspray from the fairway/rough system. Sadly, in my experience, mowable turf requires at least some irrigation.