I just realized this week I can fit quite a bit more pellets in my Quad Castile Insert hopper by pushing them back during fill. This may be old news for some but I wish I knew this earlier this season. Probably fit a few hours worth more just by reaching in and settling them back on the right side of the hopper. I was always wondering how the hopper spec could be 45 pounds and I could not even fit a 40 pound bag.