Yes, this was the dive that took Nemrod out of our “vintage diving community.” I don’t think he’s used a double hose regulator since. Nemrod, we miss you and won’t hold you to using a double hose regulator again, but there is a lot of single hose diving to be discussed too in the vintage forums.We just had a discussion of the “R-valve,” and restrictor orifices for use in the early 1960s, for instance.
To get this back on track, divers of yesteryear used their J-valves in fairly shallow water to determine when to end a dive, rather than a Divemaster (DM). Those today who are dependent on a DM for their no decompression limits (NDL) and other safety matters really are not competent divers, at least in the “vintage” sense of diving.
SeaRat
No, I have dived DH since, on shallow, benign dives and swimming pools



On subject, I do not mind at all mentoring newer divers, unless it is a once in a lifetime dive I will never get back to. But when they think they know everything, I mean, all anyone can do is try to set an example and when seeing something potentially dangerous, I am going to say something. But after I have said something and then been told that "we are not into details" dismissively then I am probably going to shut up and smile. If it is a young person with a lot of life ahead, I may be more insistent and have.