The problem with the theory of harvesting "more does" is that you are killing the good genetic does with the bad genetic does.

There are a few ways to manipulate doe genetics.

Deer breeders can work both sides of the equation by recording offspring from does and seeing what they grow up to be. Doing that they can figure out which does have good or bad genetics.

Out in the pasture, you can do what is called a doe flip if you have decent control of a hunting area. It doesn't have to be high fenced. You heavily manage your buck/doe ratio and your buck herd. Once you have had your bucks culled down to what you want, you leave all the yearlings and doe fawns and shoot all the mature does.

In theory the younger does should have better genetics because only the better bucks have been allowed to breed and produce offspring. You then let these does grow up and in 6 or 7 years you do the same thing.

Attempting this kind of thing should be at the tail end of implimenting a management plan when all the MAJOR things that effect antler size have been or are being dealt with on the buck side.

1) age
2) genetics
3) nutrition