No, I would say he has more growing to do and will put on some more weight. My sambava is 18 months old and the last time I weighed him he was about 250 grams. Not saying that yours needs to be that weight or will ever be. Gilbert looks great though!!! Nice looking guy! As far as firing up, I cannot answer that question but I know I tried to get mine to fire up in the mirror and he just sat there!