I am not trying to discount the fact that a true soil test (from a reputable lab) is the proper way to determine soil PH and fertility needs, but how accurate is this tester? I have several properties that I can hunt on throughout my area, and would like to determine the soil PH of each potential food plot location. After an initial determination of the best locations, I would send in soil samples for recommendations. Has anyone ever compared the PH of soil taken by one of these testers to an actual soil test performed by a lab? Does it at least get you in the ballpark?