SP MK25/600TI vs Atomic B2 vs ........

[Murphy in NC]

How did your B2 perform compared to ST1, Z2 and M1 and why couldn't you use the B2 with DPV's ?

 

[Shabaday]

How did your B2 perform compared to ST1, Z2 and M1 and why couldn't you use the B2 with DPV's ?

The B2 was fine. The faceplate cover of the M1 is designed to be using in high current to prevent free flow. It was also considered a cold water regulator with the Monel piston and sealing. I much prefer a sealed first stage although the servicing is more expensive due to the process and material cost to seal the first stage

 

[Shabaday]

I would think you would be very happy with a sealed B2 or any of the regs mentioned. The B2 gets excellent reviews. One thing to remember is the Atomics have a seat saver in their regulator so you either rinse them off in freshwater or soak and rinse under pressure. When I don't have a tank to rinse under pressure I will always make sure I keep the first stage higher than the second so water doesnt go into the first stage

 

[Ouvea]

How did your B2 perform compared to ST1, Z2 and M1 and why couldn't you use the B2 with DPV's ?

I dont' know why you can't use a B2 w/a DPV. The B2 purge button mirrors that of the T3, ST1 and is very similar to the Z2/Z3. The M1 has holes on the sides. Perhaps this makes it less susceptible to freeflowing at high speeds (either from water flow or DPV speeds). B2 is my 50% deco reg. Kicked and been on trigger with it many times w/o any problems.

Went from Atomic to SP and am back on Atomic. I find them easier to breathe, both in terms of initiating and maintaining air flow. Also, the venturi knob is difficult to rotate with dry or thick wet gloves. Mind you, I don't want to give the impression that the difference is huge. It isn't. However, it's there nonetheless.

Got rid of the Z2 and M1 second stages after I found the Zirconium plating flaking off from the inside of the barrel. Switched everything to the titanium air barrels. Yes, super picky and borderline goofy of me to do this...

 

[350xfire]

Plan on doing a lot more diving and I am updating my reg as my current Agualung Titan is going to be used as a backup/spare or for son's girlfriend.

Looking at the SP MK25/600TI and the Atomic B2.
My main concern is the BEST BREATHER.

If I have to pay a couple bucks more or less per year to service that fine.

I am not planning on diving cold water however who knows what opportunity could present it self.

I would like to stay around 1500 or under for 1st, 2nd and octo.

There is a shop which offers excellent service on ALL brands not that far way from me so all is good.

Looking for reasons to choose one over the other or another brand/model altogether..

Thanks in advance

I service both and both breathe about the same. I do like the ability to service a regulator whose IP is able to be adjusted by a screw rather than shims so I would go with the SP Mk25... But again, both regs are great! I do like Atomic's no-nonsense approach to their regulators though...

 

[Chanly83]

I would take a look at @rrthrelfall
Atomics Aquatics T2 that was just posted and get it serviced to a T2x.