I have two metal hopper style feeders that are pretty standard issue with the tray that attaches to the bottom with 3 hooks into 3 different holes depending on how high up you want the tray.... So my issue is that there is ALWAYS a cone of feed left in the middle of the tray inside the hopper, probably several days worth that the hens cannot get to. I have thought of getting some plastic cones, kind of like traffic cones and sticking them in the middle of the tray to force the food to disperse all the way out into the tray. Does anyone else have this trouble and if so how did you fix it?