Tornado feeder. I have two barrels with feeder underneath and one Tornado feeder. The problem I have with the Tornado is JAMS. I use the bagged, super clean corn. It doesn't seem to make any difference, the thing will have one, two or (rarely) all three of its motors jam until I take a stick and clean out the sling slot under the rubber finger. All of the feeders make a racket, the deer (and hogs) get accustomed to it, might even be the Pavlov's dog trick. Hang in there, keep the two batteries fresh, don't use any thing but corn or it will REALLY jam quickly.