Hello Everyone, I am happier to report that my Radwagon is back to riding very well. I checked every connection and cleaned off the magnetic ring near the crank (it was filthy). None of this fixed the surging problem. The Rad Tech Crew finally suggested replacing the PAS Sensor as well as the Magnetic Ring which comes with it. That did the trick, my bike is back to having smooth and consistent power delivery. Thanks for everyone's suggestions. The hardest part was into a bike shop. They are swamped with repair work during this pandemic season. I'm a happy guy!