but since I've just had a wee freeflow incident I've thought a lot about this kind of stuff. I actually don't know if my octo freeflowed or not, but it seems probable that it did. Anyway, I know my octo is detuned to keep it from freeflowing during normal diving so if my primary is tuned more open (which mine is) then when the first stage lets go than the air has a place to go that follows the path of least resistance. Consider this: if you had a faucet with a hose attatched and that hose was split into 2 and you have a stopper on the end of one of the hoses, when you turn on the water it will come out the open hose unless the water pressure was such that there was a pressure build up in the corked hose sufficient to pop out the stopper. With a regulator the cracking pressure of the 2nd stages is different but not to the degree in the example above so it seems likely that in some freeflow incidents it would only be the more tuned 2nd that would be susceptible while in a major freeflow both of them would be going.
Like I said, I could be wrong.
Rachel
Like I said, I could be wrong.
Rachel