The deer will need more time than overnight to find the corn. When I hunt over corn, I put it out a week before I intend to hunt. You'll have to experiment a little to see how long it will last. That will dictate how much you need to put down. Once you put it out, do not go back until you intend to hunt as you will leave a scent trail and scare off the older deer. Cob corn works better because the smaller critters can't eat it as fast.

If your neighbors hunt over corn alot, then the older deer will most likely be spooky around your corn pile. Take that into account when trying to draw and expect them to drop at the sound of the bow if they are on alert whatsoever.

Good luck and hope this helps.