GUE divers have a name for people like Joe.As for a definition of "technical" versus "recreational", my point of demarcation is when you start planning the dive with something other than the recreational dive planner (or its equivalent). Diving within the limits of the RDP, that's rec diving to me. Break out the U.S. Navy manuals and/or tables, and we're getting technical now.
Regarding your comments on the "Navy Tables", have you ever seen them? I know in my cert class some years ago, they talked about the Navy tables like only some guy on a SEAL team could manage to dive them. Then I saw one. It's damn near the same as my PADI table. Five minutes here, ten minutes there, but REMARKABLY similar. Especially around 3 ATA.
Check these:
http://www.iantd.com/comparison.html
http://www.iantd.com...arts/c-3302.jpg