Dan, I don`t recall any mk ll or mk. It was just a kougar on the box as far as I remember. I had a midair with another 40 size plane one day and we were both flying wide open. I landed the kougar and it had a half inch dent in the left wing a foot or so out from the fuselage, the other plane completely disintagrated. You could also land that plane hot and she would stay right on the ground and roll out just as if it walked in. I never saw a newer one so I don`t have anyway to compare them.