Thanks London_mum and I do agree with pretty much everything you say about the shortage of places in Kingston. However, there are some Slough grammars (for example) that do have the first 70 or 80 places allocated according to rank only but I don't know of anyone from Kingston who has even considered applying. Maybe it's just me not being "in the know" but I'm on my third DC sitting entrance exams and have spoken to many, many parents about many, many schools.
Interestingly, although I know of a few who would send their children from somewhere in the borough to Sutton grammar or Nonsuch, hardly anyone seems to apply for either of the Wallington schools or Wilsons as they are just too far. In contrast, many people from other boroughs seem happy to let their children apply to Tiffins when their journey would be even worse. Just seems a strange anomaly
Thanks suzanne as well - our posts crossed - but you make the same point that North Kingston parents wouldn't send their children on an hour's commute to the Sutton grammars whereas many other parents think nothing of their children doing this journey to get to Tiffins.