The biggest rule of thumb I've seen/heard with corn, if there is corn, they are in it. At least with beans, you can see them. I usually can't wait til they cut the darn corn fields to put the animals back in the woods, funnels etc...some years they don't cut til after my archery season is over and I can tell you, I see more and bigger bucks when the corn is not there.
This mirrors everything I've heard, too. I'd like to hear more about this from you guys who hunt big woods and/or big corn fields.
The (admittedly) smaller fields we have here ......whether they actually DO, or not....have the reputation of holding bedded deer. Around here.....people can't wait for them to cut it. We actually hope for a good growing season....so they'll get it cut and the "perception" (at least) will go away.
As to not hijack....I'll start another thread asking about this.