Thanks for the resources! We did books for our alone times tonight. Asking him questions, asking him to describe the scene, etc etc. He did really well, he's very imaginative so he had no problem making elaborate stories to go with the pictures. When he's calm, and isn't rushed, and isn't competing with other kids, he has noticeably less disfluencies. This will probably stay as one of the main things we do during our alone times. Thanks again.