Question for APM/Pixhawk users. What do you feel is the optimal altitude during a mission to get good visibility of the ground, but avoid crashing into trees?
I found that the drone can deviate by several meters horizontally, so it's not a good idea to set waypoints that weave in between trees, and it also seems to have trouble maintaining altitude.
I usually set alt at 50-60 meters to ensure I'm safe. What are you guys using?