As promised, here is some video of Kona actually fetching a toy. You can't tell because of the lack of audio, but the only thing I said was "Fetch." The rest of the sequence he has learned to do as part of the whole process. Mind you, I have to keep the treat in the bag until he runs after the toy, otherwise it's too distracting, and fetching sans a treat is iffy. Still, he's doing well, I think.