Multiple Labor Rates Can Make A Shop Competitive Depending On Jobs. It Is Easy To Set Up Parts Matrixes On Your SMS. A big fear in our industry is we fear someone questioning our price. We need to be proud of why and what we do. We must understand the value we do for our customer. Understanding how parts matrix’s work in your SMS and understanding the strategy behind it will improve your parts margins overnight. Also, parts pricing transparency in the industry may change parts margins in the future. Become the CEO of your company and you’ll start to see the differences in your sales, costs and profits when you pay attention to what the CEO must do for the company.