Hmm, that might work, I wonder how accurate that would be. Right now all I have for personal use is a Lowrance GO2 which is pretty basic. I want to be able to take the waypoints and make them into shapefiles for making my own maps. I work in the field occassionally here at work and we have really nice trimble geoxts and geoxhs but those are way out of my personal spending range. I also don't need something that is subfoot, but i would like it to be pretty accurate. Ill have to check out some garmin units i guess. thanks!