Got me a new lipo and need answers

[Serum]

From what I've read, the idea is to set the cutoff such that when the battery is disconnected from any load, the voltage will rise to ~3.6-3.7v again after 15-20 minutes.

This makes no sense in RC IMO.

With RC the loads are not constant. i use a 3V cutoff. you don't drawn them entirely till 3V, it are just peaks less than 3V, that make your car stutter.

When my pack reaches the point where the car starts to show this stutter, you quit running it. about .1 second after the pack dropped till 3V it's above 3.6V again.