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    Richard Black posted an update in the group Tech Diving 5 days, 8 hours ago

    Here’s a great article on Stage Decompression Diving from TDI that’s worth reading.

    Decompression Diving and the Technical Diver | SDI | TDI | ERDI
    http://www.tdisdi.com/wpsite/2012/07/decompression-diving-and-the-technical-diver/
    By Steve Lewis