So the Tulsa form guy cracked the code after 12 years and all it took was a 3 to 1 ratio? Meanwhile the rest of us have been out here paying eight bucks a bag like suckers at the checkout counter. That price tag stings every single time, especially when you only need a little scoop for a small step repair. Keeping sand and cement loose in the truck is the move, way cheaper per batch once you stop buying the pretty bags. Just hope your back agrees with the hand mixing part, because mine files complaints after about the third wheelbarrow.