Poppy is two and a toy working mix she is 10kg and 17 inches to the shoulder.
Rosie is 5 months also a toy working mix she is 5kg and 12 inches to the shoulder. Don't think she will grow as tall as Poppy.
They are energetic dogs but not hyper. Just as happy curled up asleep as running in the fields. They are very sent orientated which can be a problem when Poppy goes hunting for dropped treats at Flyball, she would make a great police sniffer dog. I love to watch them following sent trail when we are out walking, but they do come back with some nasty trophy's at times, the odd mouse or frog and a lot worse.
The difference dose seem to be in the head shape and position of the ears, but unless they are clipped I think you would be hard pushed to tell the difference just looking at them. And when you get a group of them they just love to play and its just a mass of fur running around having fun.
Both mine have thick fluffy coats
Here are some pic's of Cocker's
Working Cocker
Show Cocker
American Cocker