Hi everybody

I am still a newbie. I have 2 hives, one is from a swarm in 2007, they are growing like crazy and have produced 4 gal. honey this year. I have a 10 frame system. One deep brood box, full. One super 7 frames almost capped, I added a new super. I am in north/central alabama.

My question is, would it be better for the hive, to make a split or to add another brood box or what? Alabama winter weather is crazy, but most times we don't have a freeze until late late December, but most times January. Any information would be appreciated.