Is there a thread or web page that explains the various considerations when setting the Return To Home altitude? What I mean is how to account for various scenarios with varying levels of terrain? For example, if I take-off up on a bluff/cliff (my home point), which as 30' trees. Normally, I would set the RTH altitude to maybe 40-50'. Now, I fly over an area (the valley) that has a lower ground level than the home point. Let's say it is 75 feet lower. Do I need to consider this 75' in my RTH altitude? In this scenario, should my RTH altitude be 125'. Does it matter that I'm flying above this lower valley at 200' above the home point (which is 275' above the valley floor)? This raises another question, is the current flying altitude shown in the Go app relative to the home point or the valley floor below? Thanks for any insight to help this newbie!