I have hunted just north of you in Bosque and best chase I saw was Dec 8th on a Monday morning a few years ago. Great open area, no feeder and only saw a few does moving all morning and then at 10:30 am a doe blasts across the field 200 yards out. In the next 5 minutes, 5 bucks followed her running full speed never stopping except the 5th buck which was about 5 minutes later. He stopped to catch his breath and I killed him. An big old broken 10 with only 6 points left. One of my favorite hunts. Seems a doe can get hot anytime if not bred early.