My experience with neutered male's is that they don't reach full growth. They essentially stop growing at the point when they're cut. I'd prefer that he reach full size first. He'll get neutered. Just not yet. Again this is from my own experience with males (three of them one neutered as a kitten never got bigger than a small female, two others that just stopped growing after the procedure at around 9 mos). I'm figuring at around a year.
My experience is the opposite. I had my 3 male kittens neutered when they were 12 weeks old. They were little guys at the time, and all of them are HUGE now a year later. I just hope yours doesn't go tomcatting before he's neutered. [emoji]128522[/emoji]
My cat was neutered when he was 10 weeks old. He is now a good sized 12 pound cat, much bigger than my 9 pound female.
I know that the vet one of my friends went to said the size being limited by neutering wasn't actually true. Cats and dogs grow to their full size based on genetics. Loss of hormones shouldn't effect this.
Either way, what harm comes from waiting a few more months to neuter? Hecate will be spayed either way. And even if my experience is somehow misinterpreted, it still makes me nervous. The hallway cats are big and intact. They'll chew my baby boy to bits.
My friends cat was only six months old when he started spraying all over the house and got into his first fight with another cat. He ended up with an abscess that almost killed him. Vet told her they never should have waited so long to neuter him.