if you don't keep the does thinned out you may not see that big buck during the rut . genetics is a joke unless you have a fence around your property you will never control there genetics. hunting unfenced land you must hunt what happens along,the only thing you can do is make sure there is food and water on your hunting property. one thing i always do is to leave atleast one good thicket as a hidding place for deer,they need a place they feel safe day and night. i will hunt around it and NEVER go into it. after the deer learn this they will run straight to it when spooked and will not leave the property . if you have to many does early in the season is the best time to take them out,i love sticking a few with the crossbow before the rut. some of those old herd does are smarter then most of the bucks ,if you let them get old and smart they will hide out with the big bucks and you will never kill them.