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    Wanted Zeagle Ranger Jr.

    My 10 yo granddaughter will be taking her OW course this summer. The only jacket-style BC we can determine that will fit her is the Zeagle Ranger Jr. Have thought about a BP/W (e.g. Apex soft w/ D18 wing), but cost would be an issue (can get a new Zeagle Jr for $365 - lowest cost complete BP/W...
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    YABQ (Yet another Boyancy Question)

    A couple of days ago I went to the LDS for some pool time. I have lost some weight and have a new Hollis HD100 BC, and decided I needed a weight check prior to a dive next month in Tortola. In fresh water with a full AL80, a 3mil full, and an empty BC, I needed 6lb to descend (I'm built more...
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    Scuba divers as % of U.S. Population

    I've been trying to answer what seems to be a reasonably simple question, but have had lots of difficulty in coming up with an answer. To wit: What percentage of the U.S. population are certified SCUBA divers? As a follow up question: What is the average age (either median or mean) of...
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    Gas toxicity and narcotic pressures

    While doing some research on the RBGM deco model, I came across a guy that had problems while doing 100'+ technical dives. This got me to thinking about what sort of mixture you would use for a 1000' dive, and this ran me down the road toward several other questions. Here's my train of thought...
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