Matt, you mention rotating to eliminate leveling. Is the antenna calibrated properly when aligned north? Is that only when connected to CORS?I have not done any studies on this. Only antidotal evidence. I am getting ready to extend some control for a roadway project done back about 15 years ago (only 3 original control points left). I plan on occupying each point 4 times. I plan on taking 3 minute observations each time and rotating the pole 90deg each shot to eliminate pole leveling errors. I will use RTPK observations on each one likely.
I will also likely do some testing with this extension as well. I will run static 2 hour sessions on each point and compare them to the averaged RTPK data.
I would have to respectfully disagree with John in that 5-20 second observations would not give me enough time to average heights that I would feel comfortable with. However, that is my personal opinion. Take it for what you will.