The only part I would argue in the OC vs. CCR for NDL / Rec. diving is the aggregate cost involved and the time spent in
properly maintaining the unit. I wholeheartedly agree the CCR is the best thing under the sun for exploration-type diving, but the hassle for rec. depths is hardly worth the bother
for me. Again, I stress this is for me only.
Taking the darn thing apart, drying heads, replacing sensors, bubble checks, pre-breathes, analyzing gas, lubing orings, pressure checks, taking apart hoses, fixing molex connections and sanitizing the loop is a major pain. Having done this for years I am no longer game when it comes a choice between donning a doubles and simply splashing in. Maybe, I am losing interest in diving?
Anyone want to buy some super nice RB's??? Just kidding?