I have built my own opinion on this but I would very much welcome what the experts have to say. Typically, you don't want to be in a situation that you have to do an RTH. But if you do, what is the best way to do it? 1. Toggle the S2 switch a few times until you hear the remote beeping? 2. Turn off the remote and rely on the fail-safe system kicking in? 3. Use the RTH function on the mobile app (Go, Litchi, etc.)? Here's my take: IMO, #1 is the most reliable method. As soon as you flip the S2 switch a few times, the remote ACTIVELY transmits the command to RTH. I'm also under the impression (hoping, really) that for as long as the remote is beeping, it is continuously sending out the RTH command. Helpful if there are a lot of interference or the bird is close to losing the signal. #2 is more of a last resort. Shutting down the remote means we have to actually rely on the bird to make the decision to turn back. That's another point of failure, IMO. I've seen many videos of birds just hovering in its place after signal loss. It could very well be a misconfigured fail-safe.... or a software glitch. But why risk it? #3 I think just sends commands to the remote to initiate an RTH. Quite similar to #1. But it's sometimes quicker to just flick the S2 switch. Opinions?