George and Brian, you guys are giving me much food for thought. What you are describing is indeed a far cry different than what others have relayed to me. I have always wondered if the CNBG's supposed unwillingness to bite was due to water temps, as was commonly suggested elsewhere, or was due at least in some part to error attributed to the angler's lack of familiarity with cold water techniques and presentations.
I believe some allowance should be given in regards to geographic location, particularly where water temps are concerned. I suppose I should research the different locations, and cross reference those with water temps to see what the cutoff point for being able to catch CNBG is....if there is such a point.
It's generally regarded that they won't survive below a certain temperature, but I tend to believe that they would become uncatchable before reaching that point, just like a northern BG might when approaching it's minimally tolerable temp. If this is true, then how cold does it need to get?