I sense some confusion about the way genetics works. The genes of an animal do not change as they age. That's determined in the DNA during the moment of conception. So the genes of a given buck do not "improve" as that buck ages. Every living creature on this earth has the same DNA (genes) from the moment it is concieved until the day it dies.

I really hate it when somebody preaches QDM to me and tells me that young bucks have "inferior genes"..... I quit listening to everything that person says after that....