Experimentation and innovation are good. When researching a job that must be done on my aircraft I, (as with Skippy) ask questions of all whom I believe may have an informed opinion. Armed with this knowledge and my own findings I make a decision and go ahead carefully. This 'works for me'. As for the claim that GA always get it right, I remember a case of a Piper that had landed at Temora with a strong smell of avgas in the cockpit. We investigated and found an aluminium fuel line that connected the two wing tanks through the rear of the luggage area had developed a radial crack due to vibration. Being a plumber I used a mini tube cutter to complete the cut and we performed a temporary repair by sleeving with a piece of efi fuel hose and a pair of pipe clamps. This was only to allow the aircraft to return to its base. Absolute safety is an illusion, Don.