My cousin was telling me of an ap he used to mark all his stands. This ap also had a log where he could record all the things a guy thinks about while entering & exiting a stand location to better track. One thing which I am curious about is if there is a wind ap out there that a guy can play with to see what king of winds a guy may want for a specific stand. Granted I don't think it would take into account contours, but would be interesting to play with.