Best advice I ever got about framebuilding was from my friend who told me never to mention I have a Ph.D. in a field related to framebuilding. I do have a Ph.D. and I've done a lot of work that can be directly applied to framebuilding. Would I ever do such a thing? No. There are so many factors that a builder has no control over. Could I inspect every frame part I buy for potential flaws that might lead to frame failure? Yes I can. I even own some equipment to do that. Will I use it for that? Let's be realistic here, no I wouldn't, it's too much work. I just look at the failures other people have had and how frames have been made for the last 60 years and base what I do on that accumulated experience.