Big Timber, We manage about 1500 acres in WI and have been doing so for about 10 years now. The guys are correct when they say you have to keep the doe population down. The biggest key is shooting only ADULT DOES, to easy to shoot a skin head and find out that it is a buck fawn. Let me give you a little hint though. Come the Rut, if you see a single deer running in the woods (other than a doe being run ragged by a buck) and it doesn't have head gear, chances are it is a buck fawn. The bucks will chase these buck fawns away when they are tending does and if you look at the individual deer you can tell the difference between the fawn and adult deer. Look at the head, longer noses and blockier heads. These buck fawn are your next years racked bucks, they are the key. On out track of land we pull out about 10 does a year. That still leaves us with about a 2:1 ratio, what it though some years, after a rough winter, you might want not want to kill as many. This happend to us a while back, and we were way down, probably below 1:1. It is nice having a single doe come by with 5-8 bucks chasing her. Get out in the spring and see how much winter kill you had, and how many deer are there. They still tend to be grouped up in march yet, so you can get a decent count.
Food plots are a must around here. Corn and clover, we also have a few beans. Don't need to leave all of it standing but a few acres goes a long way come January, helps to spill a few beans when harvesting as well. We leave a decent 3 cut standing in the fall as well and the deer love that come spring time as well.
Restraint on shooting smaller bucks....We preach a 16" width, an 8 pntr is not always and 8 so I do not believe in management bucks. Besides I have seen some damn big 8's that I would be proud to shoot. 16" tend to be from ear tip to ear tip, so use that for a guide when judging. Of course then I have shot two bcuks that were less than 16" that scored good, 142 6/8 (10) and 151 5/8 (13). So when it comes to boarder line bucks you have to use your field judging ability.
Anyway, good luck, oh ya the tresspassers, buy 2 trail cameras, lock them to the trees and check them as often as possible, palce them out there at different times so the tresspassers don't know when there are there. Place them in the most likely spots for crossing your land. We have caught 3 people this way, one jumped out gate and poached a booner off the land, thought he got away with it untill the DNR showed up at his door with the picture in hand.
Good luck