Tibbe cracks me up every time I see his picture
I'm glad to hear that you like your new trainer since it's so hard to find one that you can really feel comfortable with and who also has good techniques for training. I wouldn't give up on Chloe just yet. Pebbles is also slower to learn but she is also the only one that I can put into a sit/stay and she will not move unless told. The boys are just crazy when it comes to this command. So don't give up hope so quickly. But she is a total little doll if things don't quite work out.