First many thanks to Andy (Wet lettuce) for getting me a look at the DIR3 vid it was very interesting. Mind you GI3 should be kept well away from my regs after the abuse he gave those sets he was playing with. I actually winced as the reg hit the concrete for the third or fourth time.
OK a couple of issues on the use of the flat wing, which got me sitting up and listening.
1: What’s all this about re breathing the wing?? Is it really possible to extend gas time if trapped by re-breathing every breath 4 times through the wing? I thought that was a guaranteed CO2 hit but it sounds an interesting concept.
Does it only work on high He mixes?
2: The bit about the gas in the wing equalising pressure with the water at all depths allowing you to dump fully. How does this work? Surely if that were the case you have to fin down at the beginning of the dive.
Obviously you will have to have seen it to understand the second bit but I assume all the dir boys have.
ATB
Mark Chase