Oh wait - I see you asked about graphite's appropriateness for cold weather use.
No problems there either and I've gone out to 17 many
times under conditions that required me to chip the rods out of the rocket launcher. Last Jan - it was SOO freakin' cold and rough a few times that by the time we got down there the rods were frozen solid into the holders and the blanks and guides has a half-inch of salt-spray ice cemented to them.
No issues with a custom Cape Fear, custom St. Croix, a few Lep Sticks and a factory St. Croix.
All graphite rods.
Slayed the hog tog those days too.
But that's after I had go up on the bow and physically yank 400' of frozen anchor line though the locked-up windlass and put a layer of rock salt on the deck so we wouldn't ice skate right over the gun'nels.
Hear that Billy40? Just like you have to do on those tough-to-fish-off head boats.