Scuba Pro Regs

[MNBeerdiver]

In my 12 years of diving, in Lake Superior I have seen many Scubapro regs freeflow in cold conditions.  As an equipment technician, I have seen several designs and reg adjustments to improve cold water usability.  Without info on the model of 1st and 2nd he was using, it's hard to comment w/o it sounding like Scubapro bashing.  If you look through the catalog, their 2nd stages lack heat exchangers common to regs from other brands like Aqualung and Apeks.  Scubapro prefers to insulate the parts in the 1st stage from the temperature as air drops pressure to the Intermediate Pressure to prevent it from freezing water in the evironmental side.  They don't do much to the 2nd stage to keep it from freezing.  While they make easy breathing regs, there isn't much done to keep the internal parts of the 2nd warm enough to function properly in cold conditions.