Interesting question... I'll say I play pretty much the same for the most part, maybe a little better.
I too keep a warm ball in my pocket, because it does help distance. The hands sting from time to time as well, but I really don't pay it much mind.
What does frost me (no pun intended), is that I play every round with a little angst, because here in Michigan it could be the final round of the season. Lat year I had a tee time scheduled on Saturday and we had 5 inches of snow, which meant the course closed for the year. That's their rule; we close at the first snow, regardless of the date.
So this time of year, when I ride around and take in the sights and smells of the fall, I'm always a little reflective. I think about the year and how I've played. I take in the color. I enjoy every sight and sound. I think about my trips to the beach and all my friends. I also think about my buddies that aren't around anymore, since I've lost 3 playing friends in the last 3 years. And while I do all this it's kind of hard to think about the golf, which is what makes it a bigger pleasure than when the hard core season is going on.
And so I play a tad bit better.