I’m using an Emlid Reach RS+ base and rover set to NAD83 2011 per my state’s NTRIP caster to shoot GCPs. I’ve done all the trouble shooting in the field that I can think to do and I’m still getting absolute accuracy of .3 m or so horizontally and .01 vertically when I process. My most recent effort was shot in the Ohio South coordinate system. I was able to input the proj4 code and images processed without error. I’m getting a consistent distortion pattern on my five points. If the base is located somewhere near the middle of the field, the four corner points are pulled toward the base, vertically, and pushed outward from the base horizontally. My center point, which is located closest to the base, is about dead on each time. I’ve read through all of the documentation pages and I can’t find a solution to this problem.