He's free again, and...he barely goes out! Looks as if the hormones have finally gone. Apart from the silly wide tomcat face (which, sadly, will disappear eventually), he is much like any other domestic cat now. To prove this is his home, he chases other cats away if they come in the garden. Except Lord Tigs, of course, whom he worships.
Looks as if the key thing is waiting 6-8 weeks after neutering. There was a step change around 5 weeks, when he suddenly became affectionate and was easy to pick up and cuddle.