I read this and reflect upon my Rec Triox class, and there is such an enormous disconnect between the belief and the reality that I can only shake my head. NOTHING I've learned from GUE has been written in stone, except the basic equipment configuration. With regards to deco, for example, we were told about Buhlmann-type programs, about ratio deco, about deep stops, about the oxygen window . . . And then we were shown how GUE's approach incorporates portions of each of these to create a useful deco strategy. We were also told about factors that should be weighed in deciding how to create a schedule (like cold and current) and also advised that very experienced deco divers learn over time how to tweak a schedule to best fit their own physiology. No sheep, no shepherds. Thinking divers.