Agreed. Practice has been tried in past and doesn't work. CO is a recent example. Eventually all there is is rag horns and horrible genetics. Harvest balance of all age classes seems to give right balance yr to yr.It won't work. All that would happen is the limited resource of older animals would be decimated and you'd never see one. Antler point restrictions only protect the age class below the restriction and force harvest to the older age classes. It effectively lowers age structure since those younger animals that would have been shot now became older animals that did get shot. You have to spread the harvest amongst all age classes and reduce the population evenly. There are tons of studies on it and none end in lots of mature animals.
The idea is predicated on there being enough of those animals to sustain a yearly harvest. There aren't to start with. The only way to improve age structure is to limit harvest entirely. i.e. go limited entry.
Jeremy