I agree. The R12i can provide highly accurate values under normally impossible canopy. Of course, you still need to conduct proper redundancy and time gaps in GPS ties to be certain. But that's a heck of alot quicker than traversing through those arees. We use one controller and job per project, whether it's convention or GPS or the more common GPS/conventional job. Once the zone and SF are set we create a project template in TBC and use if for ALL jobs on that project.
From a practical stand point for me it comes down to awareness that change is a constant and no measurement is absolute, just a snapshot in time. I'm certainly not going to put myself in the position of trying to make the argument with a layman that because his monument has drifted any distance over time, that it is any less valid in determining where his boundaries are or should be. Early in my career on one my first real high profile surveys, a family was squabbling over their deceased father's land holdings. Everyone wanted that coveted bluff top lot with magnificent views and they'd been fighting over it for years. I was tasked with retracing the original 1950 BLM survey that created it. Long story short, the bluff had eroded back more than a 100' over the subsequent years and only 15 square feet of that lot remained. Needless to say, didn't go over well. The entire family ripped me a new one and I had to tell them simply, 'Look, I just measure land, I don't make it and I don't make it go away. You're going to need to take this one up with a higher power than me.'
Not that moving monuments were really my intention starting this thread, but many should remember the BLM seminar case that made the rounds dealing with a moving 1/4 corner and their solution (which I totally disagreed with). The monument was moving quite a distance and they had "experts" testify about soil conditions and such.
