This sounds interesting. Haven't actually flown after RTH I think, but keeping this in mind for the future. The "procedure" would be turning the switches up, disconnect and reconnect the battery? What else.
Btw, I once got into trouble teminating the RTH during the ascend (I hit the switch accidentally on the ground). It just came down quickly, couldn't fight it with the throttle until it bounced off the ground and went into bushes, so to say (that may also be due to fact I had proper gains for 9" props and just had replaced back to 8", so it didn't stabilize).
During the fly towards home part I've toggled myself out of RTH without problem. It was the right switch, flip it a few times. And now I realize I never really remember the compass calibration and home position record - which one of the switches?! Also.... if I replace IOC mode channel for something else, how to... well, I'll figure it out.