Wow, a whole day has gone by and none of the DH crowd caught this, I guess some folks must be out of town. Anyhow, while there are some single stage double hose regs (USD mistral) the majority are two stage regulators just like single hose regs, but with the 2nd stage in the can behind the diver's head. This includes all the aquamasters and the famous voit regs based on the same internals. The fact that you don't know this somewhat basic information and yet continue to insist dubious explanations for how regulators function does not inspire a lot of confidence, please don't take any personal offense.
That is because we pick our battles where there is some good to be had. The OP nor Karl is ever going to dive a dh reg and anecdotal comparisons are just that, heresy is not fact and it was an innocent comparison anyway, no need to beat up on him. Very few regulators can compare to a well tuned Phoenix RAM HPR twin hose and that is my anecdotal statement for the night.
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