I think when I get some spare time this looooong weekend, I'm going to make a math cheat sheet for new guys ( and some old ) in the business since a lot of people usually have trouble with this. I'll e-mail it out and put it on my website too. Do you guys have any ideas of what all I should include? I'll do the conversion stuff and Cu. Yds., apshalt and concrete, Weights of used products, inches to feet chart, and some other stuff. Let me know if you guys have any other ideas.