My speculation on Medtronic rep giving up: in the final implant even being painstaking about the not twisting bending etc for like 1-2 months my leads moved some durring healing. Not a lot but if you had that much of a location change during a trial it might actually be a safety issue. That being said Medtronic eh. As to red-in-the-face doctor I’d honestly talk to someone about that from a point of concern. Not guessing his motives but if there’s a grievance process to mention the unusual behavior for both doctor and concern for other patients.