Here is another thought. I was called out to help settle a dispute between an EC and the AHJ. The EC thought that the AHJ was picking on him. I cover for this AHJ when he is sick or goes on vaction, so the town knows me as well as the AHJ. The code says that when you feed a sub panel, then feed a pool the feeder must be in pipe all the way back to the main service. The Exception says a cable is allowed for an existing panel and feeder. What is to stop someone from installing a sub panel with a feeder in cable, getting an inspection, then adding a pool off of that panel?