As a general rule Chief, females from pretty much all edible mammals are going to have better flavor as well as more tender. From rabbit to moose.
And yep that's getting long in the tooth for an Axis deer. They really start falling off at 7, pretty much like a whitetail. If I nail a whitetail older than 4 I already have it planned beforehand to ready the meat grinder cuzz that's all that deer is going to be fit for. CHILI and stew meat.