Lots of Changes

With preface inspections being so tight, every week a dozen cars have to go thru twice, a few cars 3 times and an occasional car or two failing all 3 times, being sent to the rear and crew chief sometimes suspended. What is so different that they are looking for at post race that can't be looked at at pre race. Sure they'll be some tolerance difference because of the race itself and even banged up cars winning at Bristol, Martinsville and others, but come on... What happens when Nascrap authorizes a company to make parts, a team uses that part, then gets hit because said part is out of wack. Sound familiar...