s600 second stage vs R295 unbalanced

[squidster]

I have a balanced 1ST Stage diaphram regulator,It has A R295 Second stage I think I would Like To Upgrade to the S600 Because i like its features as well as it is a balanced second stage.
I think It Would breathe Better in colder conditions also.
please give me your imput on converting the second stages.

 

[Sharky1948]

What model first stage?


EDIT: Typically the R295 is used only as an "octo" or backup. The S600 would definitely be a far easier breathing reg. As far as cold water goes, the issue is more with the first stage than the second. First stages that are balanced diaphram or sealed are generally better, though individual manufacturers/models vary. If you have the SP MK17, that is generally acknowledged as a good cold water first stage.