I'll be watching this thread with interest, I've been doing a Litchi mission over the local woodlands for the past month or so, planning to do a whole year in the ten minute flight, using 50-100 trips, I've not researched it, but it is do-able. What's your subject matter? I use Litchi as I can be assured of accurate positioning, setting the gimbal angle is a bit tricky, but I'm there or thereabouts..