CharlieNC
Gold $$ Contributor
I worked in large scale manufacturing with strenous quality requirements for 50+ years. Over 30 years ago the notion of grading for quality at the end of the line was replaced with learning how to make a quality product from the begining; which costs less and yields superior quality. Otherwise don't expect that the quality within a lot is consistent, and that grading is therefore ineffective. Maybe a rant not worth discussing!