When I lived in SC and NC I used to bait. Here are some lessons learned:
1. I found that corn on the cob worked best because the deer wouldn't eat it up as fast.
2. Add some Sweet Feed to your corn pile and the deer will literally lay up in it. It's cheap and you can buy it at your local feed store. If you are running a feeder mix it 25 percent sweet feed and 75 percent corn. Anything more may clog your feeder.
3. You'll get away with stupid deer on a new corn pile for only 2-3 hunts. After that they are LOCKED onto you and will be super wary. If they aren't looking for you they'll hang up and wait till after dark before coming in.
4. When #3 happens (deer staging till dark), move your stand (better yet have one already hung there) to that location.
5. Out of 100 sits I'd be lucky to see five mature deer. However, this was probably because there weren't many biggens where I was hunting.
6. My experience was the same deer tended to hit the pile. This is good because you can pattern them, but bad because they too are also getting smarter.
7. When baiting plan on 50 percent of your corn going to feed squirrels, coons, possums, turkeys, and every other critter but deer.
If I think of any more I'll pass it on.
I used to think hunting deer in Ohio was like shooting fish in a barrel. Bow hunting in the Coastal Carolinas was tough, but this past Ohio season was almost as bad. In situations where the deer population is down and access is tough to gain, then baiting might be the ticket for increasing your odds of success.
My wife's uncle lets be hunt a property off of Sportsmans Club RD in Johnstown. His land is perfect for baiting because the adjoining land owner (Tech/Union Lake) and property across the road (a golf course) doesn't allow hunting. In a situation such as this with small acreage (at least huntable acreage) and limited access baiting can be the ticket for pulling deer from the neighboring properties. That said, in Ohio I don't think I'd bait until January.