A digital processor aiming and firing system generates a trigger signal with electronic timing exactness, resulting in shooting accuracy unobtainable by humans. The method includes the step of gathering medical history information from a patient; reviewing the medical history; assembling and presenting a first audio visual presentation to the patient using the patient education software; examining the patient; and diagnosing patient’s medical condition and discussing treatment options with patient. The gauge wheel includes a rim with an outer periphery and a tire mounted to the outer periphery.