Have tested the Home Lock feature a few times now to see how it behaves just in case I need to use it to retrieve the drone back home it the event I lose contact with it remotely and visually, and don't want to use the RTH instead. It seems to behave good for that purpose, but I'm not sure if it has any other uses. Doesn't seem you can fly the drone in any controlled fashion in this mode, as right, left, forward and back only make sense if your standing right at the home point and make sure your facing right at the drone. Which might be hard to tell if its a good distance away using just your eyes, VLOS. When not using your devices screen, FPV in other words.