Good advice there.
I was listening to a Tom Ryle podcast yesterday, just for grins while my kid was at the skate park and I was in my rig waiting for him to break a leg or tear off some skin off a knee or elbow so that we could then go home. You can Google them up: "Tom Ryle Blacktail Deer"
He's Sundance's mentor from years ago. Sundance may be able to elucidate further since I wasn't entirely sure of his late season techniques for Archery. I'm not sure that they hunt the same terrain (I'm pretty sure they don't) so no guarantees on that source. What I took away from a couple of podcasts was that he considered December BT hunting to be be better than late November, which makes no sense since the doe population has all been bred except for a very, very small percentage (less than 1%). He seems to hunt valley bottoms in rural areas which may or may not affect that success compared to other areas.
His comments mirror other's that I've heard previously - some big bucks are still very receptive to rattling all the way through the end of December. That technique would be a major part of any late season archery I pursued. (I've never had any luck previously in the late bow season, even with rattling). Secondly, he states that he's called in a lot of bucks with a doe bleat, but when questioned further, he discussed blowing it quietly, not aggressive at all. I scratch my head and wonder what kind of call he's using because all I have is a can call that makes a ton of noise in my pocket when I move and is a very loud prolonged bleat that just recently, others have suggested might actually be replicating a distress call for doe (not good!). Doe in heat apparently bleat in very short quiet vocalizations of one quarter to one half-second or so instead of the full second long loud bleat that a can emits.
When he discussed the bleat call further, he had taken a mouth blown buck grunt call and shaved down the reed and replaced the Mylar vibrating portion with a smaller piece so that is makes a very quiet reproduction of a doe bleat. He stated that he isn't afraid to use over and over again as he hunts, perhaps every 30 yards or so as he still hunts. You should check out the podcasts - (try #45 first, I think that is where this info came from). They are not a massive input of new information for a seasoned BT hunter, but there's some good tidbits in them.
Hope that helps a bit. Good luck!