I was up at Best Buy corporate headquarters a couple of years ago, and met with their energy management people at a store nearby, I didn’t have my rope ct with me, so I was taking readings on individual service conductors. Most were pretty close, but one was 50 amps lower. Probably a bad connection at the transformer. Never heard back what the utility found.I remember taking the amp readings on a larger service after the POCO had trimmed up their ends to make connections at the pole top transformers. Noticeable difference but it sure wasn‘t going to cause a melt down.