Time of day is critical. Do it when there are tons of sats up.
If it's not too obstructed, and needs high density, (lots of curves, close to each other) try trajectory. If it is not high density, do full 200 seconds with verify. It's not the hundredths you want from that. It's the time span.
GPS is like dist/dist int. If you allow some time on each point, it gives the sats time to move, effectively confirming the shot.
You might try tying flagging on a pocket load of stones. Each place you take an observation, drop a flag stone. Then, do a lower time observation on each stone. Maybe 3 clicks, over 60 seconds, BUT,
run the creek 3x.
If I ran it like this, and got 3 clicks, over 60 seconds, on each point, and re ran it, I'd probably stake the prev run, on the second run, and most of the shots would agree by some .4' or so. Then, those that did Not agree would need a 3rd run.
I've been playing with trajectory, to survey c/L roads. In obstructed areas. At around 5mph. Run it 3x. It's amazing how it's ability improves when in constant motion. And, by running it 3x, (or 4 x) it fills in the holes, via different times of day.
There is a lot to learn, about trajectory.
Play with it, on an obstructed road, that has verified c/L shots. You will see what I mean.
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