I agree with you UP... that the DIN/Reg interface would be the weak point. The fitting that threads into the reg is a MUCH smaller diamater than the DIN itself.
As for which I would rather have... I really don't think that either would trouble me in that situation. The reason for the extra threads on the 300 bar valve was NOT for strength, it was to keep people from using regs that were only rated for 200 bar on a 300 bar sytem. Just as in the same way they reverse the threads on the acetylene tanks so that you can't accidently put the oxygen valve (with oxygen still in the hoses) onto the acetylene tank. However, I really don't think that there are any currently produced regs that can't handle 300 bar, so the difference is really moot. However, on the mid or low pressure tanks, the ability to use either DIN or yoke is a definite plus in my book. I have several AL80s set that way. My regs are DIN, and my primary tanks are the PST hp 120s. When I am in a pool, I really only need an AL80. When I go diving, and need a tank for a buddy, they usually need a yoke! The flexibility here is a good thing for my needs.
With any orginization or group, there is a certain amount of dogma. They are those things that are believed in, in spite of the facts. Sometimes, these "traditions" need to be exposed. Other times it's just not worth the hassle. When you are a part of a group, you have to make a decision sometimes, to just accept their "traditions" as truth. Even the first century church had problems with that. (Pointed out, dear brethren as UP is a preacher). I can easily see how this could be seen as "eating the meat that was sacrificed" to many in your group.
As for which I would rather have... I really don't think that either would trouble me in that situation. The reason for the extra threads on the 300 bar valve was NOT for strength, it was to keep people from using regs that were only rated for 200 bar on a 300 bar sytem. Just as in the same way they reverse the threads on the acetylene tanks so that you can't accidently put the oxygen valve (with oxygen still in the hoses) onto the acetylene tank. However, I really don't think that there are any currently produced regs that can't handle 300 bar, so the difference is really moot. However, on the mid or low pressure tanks, the ability to use either DIN or yoke is a definite plus in my book. I have several AL80s set that way. My regs are DIN, and my primary tanks are the PST hp 120s. When I am in a pool, I really only need an AL80. When I go diving, and need a tank for a buddy, they usually need a yoke! The flexibility here is a good thing for my needs.
With any orginization or group, there is a certain amount of dogma. They are those things that are believed in, in spite of the facts. Sometimes, these "traditions" need to be exposed. Other times it's just not worth the hassle. When you are a part of a group, you have to make a decision sometimes, to just accept their "traditions" as truth. Even the first century church had problems with that. (Pointed out, dear brethren as UP is a preacher). I can easily see how this could be seen as "eating the meat that was sacrificed" to many in your group.
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