Regarding the Boss Buck feeders, I recommend you replace the two 1/4-20 bolts on the sides of the feeder tube with stainless steel bolts. The ones that come with the feeder will rust after about a year and then you can't adjust or remove the feeder tube. If you are feeding protein, it is a good idea to remove the feeder tube when it is empty as some of the protein will clog the feeder tube during the summer when the humidity is high.