Joe, Don Amos aka Rocketman is an engineer of some renown. He developed the concept for, designed and constructed an apparatus which measures MOI ( momentum of inertia )of guns, which tool is most valuable in appraising the handling characteristics of double guns. Being an Engineer and due to his personal bent he approaches issues and questions with objectivity and critical analysis whch results in clarity of definitions and better understanding. His guide to gun value is definitely a good tool for appraising guns as we often let solely emotions guide our decision. I regard his opinions as being well thought through and of substantial benefit.
