Thats bang on Phillo, often thought that myself. I've come to the conclusion that there are a lot of jumped up people now making a living off the backs of scaffolders and the industry in general. The knowledge and know how a good scaffolder has was not learned in a classroom but as a result of learning from and been shown the skills from a previous generation of good scaffolders, competence and confidence in our ability to erect any scaffolding structure with or without drawings comes from that, not from a classroom. Beams and particularly the alloy ones are a great addition to the range of materials now available to us, but before that we did it with tube, we knew how. raking shores, flying shores were done with tube and to use the phrase, "they were fit for purpose", they stayed up. A lot of S/O's etc these days have not come from scaffolding backgrounds, I personally know some that in a previous career were, a painter, a plumber, an electrician. and I'm not joking, a hairdresser. Now those people have suddenly become scaffolding experts because they have a diploma or cert of some sort hanging behind their desks. They consider themselves educated and therefore superior in some form to a mere scaffolder. If the drawing states 6m and it turns out 6.3cm (unless its for precision for panels or suchlike) an engineer would hardly quibble with it, but these people would because they know no better. To my mind it comes down to a form of accquired snobbery, they think they are more educated than the scaffolder who has been a lifetime in the game.