New to GPS, but I have seen an ad that states they(private company) will create boundaries using RTK, on your fields.


I assume that this would help, year after year, because hopefully your boundaries would stay roughly within an 1-2"(RTK), where as, if I do all mine, with WAAS, then I may be having some drift issues, each year AND/OR each time, I use my GPS WAAS signal. This would affect outer field boundaries, "regions", waterways, terraces, ditches.



Is this a correct understanding?  


Am I making too much of a big deal about this?  


Note: I was told the COOP only uses WAAS, and I see their NH3 outer knife, in the grass, along the fenceline(not where is should be), so I assume, this is the "WAAS drift". 
The "inside contours" looked like a perfect curve, pass to pass.(As seen on a hillside, from the road)