RE: sour mash/bait/lures.
One of the best methoids Ive ever used is simply corn and strawberry Jello. I dig a hole in the ground, with post hole diggers, as deep as possible. Fill it halfway with corn. Pour a pack of dry strawberry jello on it, then top off the hole with corn. I also like to mix a second pack of jello in the top of the corn. I put out a few holes in spots that have wallows, rubs, etc.. Depending on the ground conditions, the hogs will root at the holes for a weeks.
Corn is always a winner, no matter what you do with it.