Sorry to intrude please feel free to move Etienne.
Thanks, Fluffy. I'm happy to answer here as it's relevant to the original poster's case.
is it really true that if your childs aptitude for a certain subject is exceptional that it is a good solid point to use in your appeal??
Yes, if the child has an aptitude or a genuine, proven interest in something the school excels at, or something it offers that is not available elsewhere, it's a valid argument to put forward for an oversubscription appeal.
I'm not saying it would necessarily be enough to win an appeal. Most appeal decisions are, ultimately, a balancing act (do the parental reasons for wanting a place outweigh the prejudice to the school?). The strength of the case put forward by the school to resist further admissions could clearly influence the outcome - as could the strength of other parents' cases.