> So if a machinist is doing some work for you and they want to measure twice and cut once - they're doing you a favour :) This is the real key. Emphasis on (p

> So if a machinist is doing some work for you and they want to measure twice and cut once - they're doing you a favour :) This is the real key. Emphasis on (professional) machinist. I have, however, needed to intervene in the thought process of a Home Depot saw operator's idea of how to cut an 8' sheet into three equal pieces of approximately 32" each. :)