"According to the FAA's web site, testing of the WAAS in september 2002 confirmed an accuracy performance of 1-2 meters horizontal and 2-3 meters vertical throughout the majority of the continental United States and portions of Alaska"
this is right out of the manual that came with my gps. now i live in ohio (the southern part) but even then the hills around here are no taller than 900 ft above sea level, there are lots of satelites to be picked up and no hills capable of throwing off the gps at a measley 900 ft. now i can agree that it's not going to be EXACT, but do you really think that in 9 years they've gotten less acurate at what they do?lol i mean common, don't we all strive to get worse and worse at what we do, if this was so i think we would have reverted back to being neandrathals a lot quicker already.
i don't hunt right on the property lines for obvious reasons so 2-3 meters is certainly accurate enough for me.