If a company has a formal training program, it’s a safe bet that they have their act together. They can do training in-house through regular meetings of their employees.  They can have field training systems in place, usually coordinated with classroom training sessions.  They can also use trade associations, such as PDCA (Painting and Decorating Contractors of America) or paint manufacturer’s representatives to stay up to date with the latest materials and techniques. 
I am in northern Nevada and you have not yet gotten sufficient responses to provide a painting cost chart showing the averages.  I do have a quote from an outside (Not Homeadvisor referral) painter who is local for $2,750 for soffits, patio cover and posts, Garage facia (redwood clapboard above (~300 ? Sq. Ft.) on a 2046 Sq. Ft. home where the walls are 9 ft tall and it is fully stuccoed with plastic stucco surfaces, so not being painted.  
Oh, where to begin? Let me start with 'watered down paint'. 25-50% before the material gets to the site? Impossible. You would basically be painting with water at that point. It would be less of a hassle, and cost, to simply use proper material. You would be forced to apply three coats instead of two, as the coverage would be horrible. Whatever cost you think might be saved in materials would be lost in labor. House Painting Arvada Colorado