I use a 30lb feeder and hang it, I adjust the hight about once a week for the growing birds, when they start to flick it out than I raise it up and that solves the prob, I don't clean up the spilt food because they eat it still, I had a troth feeder and a round one with a jar on top before on wood, they would dig at both and they still try to dig that area where those feeders where to look for food, I guess it gives them something todo. I have 22 birds and 6-7 eat off the ground at one time, lowest of the pecking order I assume also. All can easily reach the feeder and waterer, I partly hang my double walled 8gal waterer also and that did wonders to keeping that clean, I put blocks of wood under the waterer to take some of the weight, 8 gals is a lot of weight and I'm sure it's not designed to be a hanging waterer, now neither can tip over no matter what they do.