That video is 10 years old and relates to the original Nek Tite.
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Hopefully someone covered other options with you. Aqualung was installing the oldest, stiffest of three different SiTech neck systems, but DRIS should be able to install any of the three. I think Aqualung might now be transitioning to a more flexible SiTech option.
Also, I hope they installed a more durable Polytex neck seal and not just latex.
Who else has gotten rid of their neck ring?
reaching valves is a non-issue if you get a xdeep stealth and switch to sidemount
just run it open and autodump