Pardon me if this has already been asked as I wasn't able to find a related topic but would anyone be able to tell me more about the so-called "rational soil analysis" as an alternative to a soil analysis and report as usually performed by engineering companies here in South Florida? One of my bidding companies, that I am considering as the likely choice, is telling me that they wouldn't request a soil report from me (~$900 savings) as they have engineers who can do the "rational soil analysis". My home is at an elevation of ~7-8 feet and in a non-flood zone. Should I still order a soil report? Is "rational soil analysis" also based on deep boring?