Which ScubaPro reg for a cold-water doubles rig?

[elan]

"but I've heard mixed things about it's mechanical and cold-water reliability."

I'm not familiar with the G250 or the R295. I dive with the S600. Been in lots of different environment & never had 1 problem with it.
BTW, Below is a statement you can find on Scuba Pro's website concerning cold water.
Hopefully it will dispel any cold water concerns.....

Cold Water Diving With SCUBAPRO-Diving conditions can be drastically different, including extreme cold water and outside temperatures, posing the possibility of a regulator "freezing". Therefore, resistance to freezing is imperative for the diver. All SCUBAPRO regulator systems are CE approved for 4300psi cold water diving. Some models go even beyond this super stringent qualification and have successfully been tested in extreme cold diving conditions at less than 36°F. As a specific anti-freezing measure, SCUBAPRO engineers have designed a patented finned cap for both the MK17 and the MK25 first stages for optimal cold water diving. The ribs act as a radiator to increase the surface area of heat transfer from the water to warm up the internal parts that have been drastically cooled down by the gas pressure drop. On the MK17, a dry ambient pressure chamber enhances the resistance to real ice cold water at any depth compared to other dry chamber diaphragm first stages. For cold water diving, SCUBAPRO’s second stages feature precision molded carbon fiber and technopolymer valve housing and components. They even exceed the CE cold water norm. In addition, these components contribute to their lightweight features and corrosion resistance.

The thing is that for most warm water locations cold water is considered to be < 50F. Here cold water is <40F, 34-36F is not so "super stringent qualification)" it's normal water temperature from December till April/May 50 feels more like normal water and 50 + is just tropical

 

[CaboJim]

The thing is that for most warm water locations cold water is considered to be < 50F. Here cold water is <40F, 34-36F is not so "super stringent qualification)" it's normal water temperature from December till April/May 50 feels more like normal water and 50 + is just tropical

& where is this?
I dive in sub 60f water year round, anything below 45f is too cold for me.....

 

[elan]

The thing is that for most warm water locations cold water is considered to be < 50F. Here cold water is <40F, 34-36F is not so "super stringent qualification)" it's normal water temperature from December till April/May 50 feels more like normal water and 50 + is just tropical

& where is this?
I dive in sub 60f water year round, anything below 45f is too cold for me.....

Ontario...

If OP is referring o cold water as to water > 40 < 50 I think S600 would be a good choice. May be even on MK25 instead of MK17. I dove with a group recently with 1 person diving MK25/S600 sets. The temperature was 39f and she was fine. Though we did not go deep as it was under the ice.

However on another dive my buddy used MK17/S600 on his stage and the second stage started leaking once he was going deeper than 60ft in 37f water. The techy took it apart and tested and said that the reg itself is good and tuned properly. That was not a single case but he got it many times. However G250V performed well all the time in those temperatures.

 

[ps1mhd]

The MK17 is made for cold water and the new A700 with the metal case
it should act as a big heat sink. I have taken it apart but have not used it yet.


Mike

 

[it_mike]

My 2c, go with the same reg on both. It's my habit to routinely switch between both rigs, insuring confidence in both and my skills.

If you need to switch due to an emergency, do you really want a lessor performing regulator?

 

[Misa]

Mk 17 + Mk 17 + G250v + G250v its best.

I like to test new regs and i have MK 17 + MK 25 + G250v + A700