I'm getting into the irrigation end of this business and I was wondering how you veterans handle the estimate. As an example, I went to a potential customer's house the other day, measured the property, took pressure and flow measurements, talked to the customer and then went home and designed the system to get an idea of how much to charge. At least a couple of hours invested at this point. I call the guy and give him the price and right away I know he had no idea how much something like this would cost. I'm guessing you guys have been doing this long enough to be able to give a pretty accurate estimate right then and there. Until I get that kind of experience under my belt, how can I avoid this next time? Are there any good computer programs out there that can design a system to cut down on design time?