If you poke around the classified area, I'm sure you can
*cough* find some good regs
*cough* at an attractive price.
LMAO!!
@seagirl1990 Just my opinion: The first thing you need to decide is a more long-term decision. Do you want to get your regs serviced locally, or are you okay with mailing them off?
If you're okay with mailing, then the sky's the limit. If you want to get stuff serviced locally, then you should figure out what shop you would want to use and probably consider buying from them.
I have not tried Deep6 regulators, but everything I know about them makes me believe they are top notch. And, if you are in Atlanta, you *might* even be able to get them serviced locally, as I think Deep6 may be based in the Atlanta area.
Personally, I have regs from ScubaPro, Atomic, Dive Rite, and Hollis. IMO, they all make good regs.
The only issue I know of with salt water is that some regs have a 1st stage that is not environmentally sealed. That means you should give it a more thorough fresh water rinse after using one. In other words, it's really not that big a deal.
My most recently acquired regs are my Atomic Z2 set. You can get them sealed or unsealed. I got the sealed version. They cost a little bit more up front and a little bit extra to service. But, it saves me worrying about it if I don't have the time to rinse them as well as I should right after diving... One thing to note about Atomic regs. Unlike most manufacturers, their least expensive regs are pretty much identical to their most expensive. The differences in prices are mostly based on the materials used (and whether the 2nd stage comes with a swivel fitting). The more expensive Atomic regs have more corrosion resistance, are lighter, or both (plus, generally, a swivel fitting). Not like most other manufacturers where less expensive also means lower performing.
If you're okay with the potential for slightly less convenient servicing, the Deep6 Signature regs are probably the best value on the market and one of the best, period. If you want to stick with something you can buy in a shop and has the potential to be easier to get serviced, I think the Atomic Z2 setup is also one of the best values on the market. It's not very much more expensive than the Deep6 setup and is really a top notch setup.
I also have the comparable ScubaPro setup, which is a Mk 25 EVO + G260. Now that I have and can compare the Atomic Z2, I would take the Z2 over the SP setup. The SP setup is not (and can't be) sealed and it's quite a bit more expensive.
The middle of the road ScubaPro setup would, in my opinion, be a Mk 17 + G260. The Mk 17 is a sealed diaphragm 1st stage, but it has no bottom port. The Z2 has a bottom port. And the Z2 is also still quite a bit less expensive than a Mk 17+G260 setup.