is this a death wish?

[settinggirl]

     So, when I lived in down south in a warm state, I got a fantastic deal through a friend for a set of new ScubaPro gear--mind you I was diving in an average temp of 80 degrees.  I moved back to Wisconsin and everywhere I go, people ask me what kind of regulator/gear I have.  I've now heard from at least 5 people that ScubaPro is going to be the death of me... "scubaflow" in cold water.  It has been rumored to "free flow" in cold water at depth.  I have used my regulator in as cold as 38 degree water and it worked just fine.  I have the MK25/S600 model. Is this a time bomb waiting to go off or am I probably ok?  And is this just with certain models or all?  Anyone have expertise or experience with this?  I wonder what the true statistics are with it failing, that would be interesting to find out.