If you want to be DIR I think the A700 wouldn't fit.
A DIR regulator should be easy to open and fix at depth.
OCTO is MANDATORY, DIR divers just use 2x the primary.
BEING CHEAP)
I don't agree that divers are penny pinchers. I think they became wiser buyers ,that's what Internet does, gives you more tools to negociate.Diving is expensive, the difference sometimes, sadly, is over the 1k mark, if you call peny pinching 1 000$, well you do have a lot of it. I shop around when I buy something as simple as shoes, why should I close my eyes and "trust" the dive shop when I give him my hard earned money to buy a 800$ set. Everyone in the dive industry is in it for the money, why can't scuba divers take care of their money? Nobody will do it for you.
Some LDS' sell over the MSRP, why shouldn't you check it beforehand.
Some don't have an Halcyon dealer near, and it's easier to get DiveRite, why would they be wrong in their choice?
HALCYON)
Halcyon gear is good. But I think it would be a fallacy to say that it's all made in the USA. Do you think your SMB or Wetnotes are made in the USA? I think not. Or SURELY not 100%. I love Halcyon, I have an Halcyon wing. But when you know dive gear is most of the time overpriced and halcyon is even more overpriced as well, it kinda puts it into a "luxury" section that sadly, some people can't afford.
A BP costs ME 60$ to make/ship, and they sell it over 100$, halcyon over 200$. It's just a piece of metal with an H on it.
MADE IN THE USA)
Sadly, that won't make me buy it more, sometimes it's more of a deterrent.
American cars : Pieces are made in Malysia and the whole pieces are assembled in the USA. Yet it's called an "American" Car.
Japanese Cars: Toyota works with local supplier and assembles in the USA. It's a true AMERICAN car, yet they call it "foreign"
ORIGINAL POINT OF THE THREAD)
WE TOTALLY WENT OFF TRACK OF THE OP'S QUESTION PEOPLE