[rebagley]

We've been using a square hopper and it's been working pretty well for us--we tried the bucket method briefly, but decided it wasn't really worth it for what we were trying to do. However, we do collect and shoot from the bottom (we built it for floor collection, but after Lone Star we decided that it might be better to human feed through the bottom slot, and it's working quite well for us) and it's powered, which helps make collection quick and reliable.