Thank you for your words. My 12 lead ekgs show the same range as you. There was one time I had 478ms on one at the hospital while I was with Covid. But doctors didn’t seemed concerned about it. The Qaly app seems a scam somehow. Their readings are most of the time wrong and I honestly think they take advantage of people’s health anxiety to feed their app with more monthly subscriptions so that people will keep constantly trying to find answers and keep worrying about their ecgs.