No idea how shocking one's heart gets it back in rhythm and, if so, how it stays there. It's sounds like training a very old puppy. BF Skinner's negative reinforcement. My cardio doc is great and I trust her but she's not gabby. It takes a lot of follow up questions to get info beyond what I need to know.
Regardless, I took a nap with the good drugs and my Kardia app says I'm 'normal'. Magic.
Now I get some new drugs at some point to be sure the afib does not come back and all is well. I get the new drugs from a doc that specializes in electrical function of the heart. There's plumbers and electricians. I'm going to see the electrician. Until then nothing changes. Keep doing what I'm doing.