It was late and I answered my own question like y'all said. We have pens on 4 feeders but don't run those feeders in the off season. We just hunt the hogs now and upcoming turkey on the 3 feeders with no pens. I put the pens up last year to keep the hogs away so my plan did work since almost all deer are taken at the penned feeders.
We are not in a high density area as well. 1 per 25 acres is my guess. Also, during the season only 20% of the deer we see actually go the feeder. Most just walk by it or stay in the brush and never come in.