Hi
I know I've been out of the loop, but I have tried to keep up with reading your posts; especially ones about peanut . Probably because we have two Siamese hybrids. Our youngest on, now 15 months old, is the largest of all the pride. He weighs in at 15+ lbs. I'm not sure if he's finished growing yet. The interesting thing is, He doesn't seem to be overly interested in being the Alpha male Like a couple of the smaller males are. I know it's been a while and you may have solved the problem, but it seems like Peanut is eating too fast. They have a special feeding dish that requires the cat to work a little more at eating, thus slowing him down. So by the time he's finished, his body tells him he's full. You may check that out.
Okay< I just finished reading some of your replies and see that you have already been given some ideas on slowing down his eating. Have they worked?