The large round bag is working well for us. There is less waste than our previous set up which entailed large hole panels which surrounded the bale. Getting the bag on the bale is a little tricky, We raise the bale off the ground with the tractor forks and pull bag over the end of the bale, then drop the bale so the bottom of the bale is sitting on the bottom of the bag. Then move the bale to it's proper location, inside a 3 sided shelter. We then lower the bag from the bale, remove the bale netting and then quickly raise the bag over the bale again. It's a bit tricky and you have to be fast before the bale starts to fall apart. Hope that made sense. We use a ½ inch rope (attached to roof) to take the slack out of the nag bag and continue to adjust the rope as the bale gets smaller. We are feeding alpacas and several alpacas can eat at the same time. There is still some waste, but much less than before. Overall we are happy with the nag bag, we have bought our second one now, and are considering a third one. They are a little expensive, but I can appreciate why.