(X) Hogarthian diver
This is the term that is evolving for those divers who (1) think for themselves AND (2) embrace certain DIR concepts that are safe, having (3) discarded the particular un-safe DIR concepts.
To wit:
Safe DIR concepts ---
Long hose configuration as primary source / bungie necklace backup
Donation of primary
Streamlining for DPV use
Short solid fins
Spare mask
Minimal weighting
Horizontal trim
Absolutely no bottom silting
Etc.
Un-safe DIR concepts ---
Standard MOD mixes (vs best mix for MOD)
Standard deco mixes (vs customized mixes)
Snorkel abandonment for open water shipwreck diving
Lead-acid DPV batteries only (vs NiMH and/or LIon)
Single gauges per diver (vs backup bottom timer)
Diving in groups of 3 (vs buddy pairs)
Deco on the fly (vs pre-planned V-Planner deco)
Etc.