Ok....I am finding that the farther out I am from a fort, the lower the density of finds are. This was not my observation at first, but yesterday and today I noticed that if I got out too far from a city, I would get nothing found a lot more than close in. Example: I hit 4 finds out of 20 drops near Traveler's Point but as I was farther out--I would have 20-30-40 nothing founds and no resources at all.
I am not sure if this is a respawn issue or an issue with distribution. The last 2 runs netted me 80something nothing founds out of 100something drops. Also, the finders break pretty damned quick!