Peter,
Please understand I am aware of the basic principals of game management and the relative benefits, although I admit to not being the expert that you so clearly are.
I am not suggesting that people who bankrole and raise deer on preserves should not obtain a return, but there was an inference that such improvement benefits the species as a population, both wild and preserved, and clearly by your statements it only benefits those that are preserved, and in your own case by those who want " to keep it all for themselves".

Trying to apply your principals and knowing "jack shit" about anything, I admit to not understanding how your practices might help the wild deer herds in our part of the world, not to mention us hunters who prefer NOT to micro manage individual animals to the point where one European "keeper" I hunted with knew every male deer almost by number and medal rating.
An interesting form of hunting, but not for all of us.

You have stated that where all hunters have access the herd shows" little of no improvement at all".

Explain to me then how, what may be regarded as the best "Trophy" producing herd of wild Sika deer ( Cervus Nippon Nippon) anywhere in the world continues to produce world class Trophies year after year for over 100 years without any of your "mangement" interference.
To help you answer please remember all hunters have access to the largely public lands on which the deer are located.
Hunters take immature stags, females , juveniles at all times of the year.
There is no bag limit
Hunters are encouraged by government in order to keep numbers in check. Mountain Huts are supplied at a small cost to assist in the process
Some easliy accessable areas are spotlighted
Deer have in the past being pursued by helicoptors ( indisciminatley)

Dispite all this New Zealand wild Sika rate, at least in antler growth better than most European exotic preserved herds.

I am not anti deer mangement, but sometimes herds with a good genetic base can thrive and provide great hunting for EVERYONE, not just a select few.

I think I can now understand why your horses may not be impressed, pants up or down!!!

All the best