Jason Ooi:Hi Vie,
I know CDX5/Zeta is very good performance, but why not try it in "tech dive" see how the performance below 50m or 70m depth.
Well, I don't own any DIN CDX5/Zetas (the yoke set I used was borrowed). I have never dived beyond 50m and do not have the necessary training and/or trained buddy to carry out a dive to 70m safely. I also don't see the point of using a pilot/servo-assisted second stage when my "conventional" second stages are more than adequate and extremely reliable.