i think qdm is a great thing if you only take mature animals the antler size will be bigger on a mature buck then a not mature. just like there body wieght will be grater along with doe's. wich in turns means more meat. if you shoot all the first deer you see you will end up with an unbalanced deer herd. qdma is about a herd ratio of 1-1 is ideal. not the total amount, for what the land can support.