Very interesting thread - thanks to all contributers... I find it very surprising to hear that you, Will, is not diving with the single-mouthfill technique (until now, at least) it seems, but still made lots of +100m dives succesfully. (!!!)
Personally I have only been diving to the dpth of 74m (single-mouthfill at 25-27m -ish) with a Sphera (last mask EQ at mouthfill-depth). Still a small Moufthfill left at that depth.
The benefits and the math (in Erics post) about the single-moouthfill technique is standard stuff in AIDA education system and not that "advanced" at all... It is included (and pinned out) in the AIDA 4 star course (32-38m depth CWT) and what I consider "basic" knowledge for freedivers - I thought we all were doing the same thing
. So Im suprised - and find it very interesting that others do things differently, thou Im not finding the single-mouthfill technique challenged in this thread (so far)
Isnt the mouthfill technique a part of the AA material?
Thanks to Eric for sharing the techniques - and Im looking forward to see where the approach from Will and Dave (single mouthfill, shallower) will take you!
- and still waiting to hear what new(?) knowledge Mr. Greatwood have decided to share in his book!
Keep sharing - you will have your reward in heaven! (or in the depths...)
Morten