In order for the so called engineer , to assume the responsibilities of a well trained , competent welder the engineer would have to have excellent hand eye coordination , and excellent kinesthetic awareness in the weld zone, this trait is what should persuade a candidate further , its what separates the top from the rest , and even a person of lower intelligence should discover if they have this trait. Having spent 1500 hrs in welding school you could tell the few who were gifted kinesthetically , and its just easier for them, they are welding in the zone or zen, its god gifted but still requires practice.