Looks pretty good Bryan... great to see your Argonaut product line expanding!
Regarding ease of service, how does the second stage front cover attach?
Spin on like an Atomic, or some form of QD band clamp or screws on the reverse side?
My Atomics are generally well-designed great breathing regs, but the plastic main housing and clip-on exhaust wall thickness are egg-shell thin and easily damaged while the cover retaining ring is flimsy and very hard to grasp. If the reg gets a decent hit on the edge the threads are buggered and the cover won't screw out easily.
Atomic introduced a 316 Stainless accessory Cave Ring for the M1 so the second stage could be 'field stripped' UW to clear mud or debris while cave diving.
If you have design freedom for the new reg I would like to see some form of annular moulded bump stops around the cover... could even be an elastomer insert in a double shot moulding?
I wonder how the younger emerging dive community will react to ease of user servicing as Unique Selling Proposition (USP) for these regs?
So many people these days lack the simple tool skills that pretty much everyone in my generation takes for granted... most can't change the oil and filters in their car, for example.
They have had drummed into them over and over the 'critical need' for their LDS to service all 'life support equipment' annually that the mere thought of changing so much as a LP hose o-ring themselves gives them the cold sweats. Apparently o-rings will suddenly fail if not changed religiously every 12 months...
Only last weekend I was in my local LDS getting an air fill to use as my test rig when rebuilding my old USD Aquarius and Scubapro 108, and cleaning and servicing a couple of Atomic Z2 octos. I had been quoted $300 to service an Atomic enviro sealed B2 first stage and Z2 octo, so most definitely an incentive to do it yourself here in Australia. At least in the US there is the option to ship it back to Atomic for service without being charged an arm-and-leg!!
Busy Saturday morning, so while waiting for the tank to fill I mentioned that I was restoring a 1970's vintage reg set and intended to use it soon.
Could hear a pin drop in the dive shop... reactions being a mixture of incredulous looks that I was intending to
service my own regulators, then horror when they realised they were > 5 years old and were going to be USED IN THE OCEAN
I'll bring in the Kraken next time and watch heads explode