The Dallas Irrigation Assoc. brings in a guest speaker once a year to provide the opportunity to get 8 ceu credits. Pays for the membership. This year the speaker was a bidding expert by the name of Charles Vander Kooi. If you ever want to become an expert in bidding this guy is a great start. How many use man production hours in their bidding? Can you estimate how many feet of pipe can be laid in man hours of production? (mhp) Valves in MHP? Heads in MHP? How many add overhead to bids? How many include their salary and profit as one and the same? Equipment hours? How many know actual material takeoff? How many include lost man hours? (Time spent standing at the shop, vacations, sick pay, rain days, etc.) I could go on and on but he smashed the per head or per zone bidding method. Real bidding takes a lot of time. No shortcuts in doing it right. I was trying to relate it to the by the hour billing method (T&M) but I'm going to go over my books very carefully and determine the actual cost and profit factors in percentages for each hour of billing.