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In a message dated 9/3/98 9:02:16 PM Eastern Daylight Time, bdi@wh*.ne* writes: > It is about as pure DIR/Hogarthian/whatever as > you are going to get. > > >It has been said here many times, that DIR is a system, and that change one > >element and it may not any longer be DIR. Redundancy - clean, uncomplicated > >redundancy that doesn't increase task loading - is the at the core of the > >system, and the isolator manifold and long hose the key to that. > > WHO EVER said redundancy was at the core of DIR? > WHO MADE THIS CLAIM?! WHO?!! Both Mr. Gavin and Mr. Jablonski make very persusasive arguements for manifolded systems, however this is in the context of overhead environments and hogarthian principles. DIR would appear to allow single tanks for relatively warm open water , provided long hoses, buddy team methodology and proper gas management are also employed. It should be noted that the long hose, lack of a qd buckle and the wing type compensator are the only deviation I can descern from basic open water one scuba agency type gear choices. Oh and yes they have dismissed with the snorkle from what I can tell. What's less clear is how DIR affects basic procedures. The long hose resolves OOA situations, the other situations commonly drilled are less clear. The one that stands out in my mind is lost buddy procedure, but then the answer is probably as simple as "don't lose your buddy". i would appreciate any additional commentary as regards open water level diving and DIR < or even hogarthian > style diving. I notice that even Mr. Jablonski has not yet placed open water programs on his site, I am very interested in reading about how he intends to teach such and what differences he will make from the usual. regards, al marvelli -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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