I live above a rock quarry, and wasn't too sure how the altitude is treated with the P3A. Since it is a large drop off, does it ever adjust or stay to the level it was at the home point? What happens if I drop below the edge of the cliff, I am assuming I will lose signal, and it will RTH. If it does the RTH, I am guessing it will run into the wall because it would keep flying at the current altitude. I have attached a video showing the quarry and drop off. I searched the forums and from what I can tell it uses the barometer to calculate altitude, and that this isn't very accurate. I’ve only done 3 flights, and when I did the one in the video I didn’t notice any change in altitude, but I may have missed it.