A/C owners, folks wondering if that sample they took a while ago is still good for testing, and even those wondering how worried (if at all) they should be about an out-of-spec result will benefit from hearing this episode of Slick Talk, wherein Blackstone Joe breaks down helpful rules to live by that will make the process of sending in a sample and understanding the results afterward that much easier. After the main event, stay tuned for the bonus segment: Unit ID of the week!