If you going to ask high detail question and theory you going beat me everytime there is no denining that. But I keep saying and have said from the first time I spoke on this matter. I see what happens on the floor. But you define that and it never happens you say it's everything else. We'll it's not. How may cly would you have inspected over the years or change fuel system checks mag checks and changes. At the end of the day the little red knob in the wrong hands can and dose destroy an engine.
Cheers