Thanks for a very informative thread. I get that scaled means don't trust the coordinates, but the NAD83 vs. WGS84 issue was not directly addressed, right? I have only logged 9, but when I looked back at my photos, I see that the coordinates are pretty much spot on (even for one that is scaled). But let's assume that there could be significant differences between NAD83 and WGS84. I have an eTrex set for WGS84 (for GC'ing). If I'm benchmark hunting, I should set for NAD83 to get the best accuracy, at least for those whose coordinates are not scaled. Anything wrong with this approach?