Esshup is right. Weather it's 3 or 33 it's better than 1. You see how many your getting from the one feeder. Imagine if you had 7 or 8 out there. I would try to spread them out best I could. Let say your went with 8 total. I would try and put 3 more on one side down from where your current one is and spread them out even. And put 4 more on the other side as even as possible. At least that way you will get fish coming and going also. You would be far better off then with just one.
As Zach said above you could use deer feeders as they do work I been using one for 5 years now, but I have a shallow spot to put mine and it's fairly level and I only have 1 acre full pool. Here it is in this pic. It will sling the food though no doubt.
The only difference between a rut and a Grave is the depth. So get up get out of that rut and get moving!! Time to work!!