All grain is harvested and bagged with some moisture content. All pelleted feeds are manufactured with some moisture in them. Tightly sealed feeders witll cause the feed/grain inside to condensate up under the lid then rain back down on top of the feed below it. Slow feeding rates and high humidity/rainfall can amplify this even more. If you want to see how much moisture in in the mix then take a coffee can amount of it and dump it into a plastic baggie. Seal it up tight and throw it out at daylight and leave in the full sun till later in the evening. Then check and see how much moisture is inside the baggie and what the feed looks like. Leave 3 or 4 days then check it to see and then open it and smell it. That is what is happening in your feeder once it clogs up. It happens to a smaller degree due to the top layer of feed moving down and out the funnel....till it clogs up. Venting the feeder will help only helps so much if the feed is moving daily. Both those are basically baits or attractants with minimal nutritional values from the % of protein only.
not plastic feeder; i guess I could have been more clear. the protien pellets in the tube outlet where they eat gets wet from rain or dew and clogs up. i dont put protien pellets in my spin feeder. I am considering drilling a drain hole under the lip of the outlet.
But the buck ration is the same level of protien and doesnt cause any problems. It would be easier/cheaper to start a mineral lick.