The 2022 NHTSA guide says brake spring checks are key. It notes that skipping them often leads to repeat visits from customers. Your method of always double-checking sounds like a smart way to avoid that.
Good point about the NHTSA guide. It's crazy how skipping simple checks can lead to customers coming back. What part of the brake spring check do you think is most often missed? I've seen techs forget to test the spring tension after cleaning. Does the guide suggest a specific way to double-check that step?