I age depending on the age of the meat... older meat needs to age longer. Usually it ages too long while the tooth is being aged for age though. Sometimes aging is pretty tough when the age is not known with certainty. 
Excellent observations!
I feel like I'm aging as this thread grows. It's not making me any more tender. In fact, I'm starting to feel tough as I get long in the tooth. This is tough on the aged elk, too. They're tough young or old, but the meat is tender after aging, even if they're aged. Then we get into elk dentistry. Filling an elk's teeth is tough in this day and age. I'm too old for this.
