The bulbous ends are the ends that have growth left. The skinny ends are mostly done. His left 3, left 4 and both beams look like they got some growing to finish. Once the bulbous end tapers off they pretty much stop growing from what I have seen.
Nice deer thanks for sharing and good luck! Update with the harvest photo if you get him.
My son and I were looking at the pics again last night and I think you are correct. It looks like its just starting to split. Those pics are at my my sons stand location and he is beside himself. He said last night the season is never gonna get here.