Doug Krause:
Come on Chris - make a commitment!
I knew this was coming....
Reasons I would choose the Delta 4
Lighter second stage
less likely to have second stage corrossion
I like the breathing more
The HP seat has less problems
The LP seat just works. Since the abyss stopped having the metal seats it hasn't been the same (by the way if you have one make sure the LP oriface is metal or green, if it is a white one get it changed)
I like the adjustments
It comes with the enviornmental kit and even if the Mares did I hate working on wet enviormental kits, makes a huge mess and stinks. Plus cost more every year.
The hose will plug into a standard IP port on a first stage, the Mares uses a special fitting.
The delta 4 when tuned by a tech works or it doesn't, the Mares may seem to work fine but if the tech didn't adjust the oriface correctly(and many do not) the Venturi performance is lost and the reg is now only a moderate performer.
When the Abyss is tuned to correct factory specs the purge is very soft, I like a purge to really purge when I hit it!
What I don't like on the Delta 4 is how long Doug is taking to get the 7 foot hose with swivel in
Hows that Doug?