Concerned about Willy's weight/your opinions

[AbbyMom]

I see that Willy has a fine fluffy tail and snowshoes (hair between the toes that protects his paw pads). Is it possible that he is part Maine Coon?

[Randy_K]

Is he very active? If he isn't, then he may be eating too much. You would see signs of worms if he had them again. 10 pounds (4.5 kg for the rest of world) is a lot for a 9 month old. He looks healthy, though.