Antler shed is a result in a drop in the level of testosterone. Testosteronepeaks during the rut (obviously) when the days are very short and the does are ready for action. Testosterone begins to fall off as the days get a little longer...as they are starting to now, and most of the does have been serviced. Here in MD we have gone throught the primary and secondary ruts and will get a much less active 3rd rut as last years late born females come into heat...probablyin about 10 days. Once that is over, the buck's testosterone will drop significantly which will result in the loss of the antlers.
Best of luck.
Craig