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Guest
Nah, I think Apeks started it - But I do hope SP's found a smarter way to deal with the reversal than that dreaded pin that's buried deep inside the barrel.
Apeks is about 35 years old so they are back in the pack. Scubapro made some left handed 109s in addition to the easily converted Pilots and Air 1s. And the R190 has always been convertible. Do you think they were getting ready for side mount back then??? Nah. Looking at the reg and schematic, I suspect the D-series is convertible also. DA???