"For 2022 entry, 223 of the 838 boys who were deemed eligible after the 2-stage exams did not put SGS on their CAF."
Do you have the source of this information and the equivalent Wilson number? Lets assume this is true, still 3/4 of the boys put it somewhere in the CAF form, combined with the FOI school ranking information one can still conformable to declare the 95% number is ridiculous.
In addition, FOI reveal the raw scores for SGS (see below) , based on all those number of high scores 230+ of first round SET, do you think 90-95% of these candidate put Wilson over Sutton but didn't get in Wilson in the end?
https://www.whatdotheyknow.com/request/raw_and_standardised_scores_for#incoming-1715608
"There is a trend of people in other areas of the country (who have 4 spaces on the CAF) focusing on league tables, aiming for super-selectives and then moving if they get them: for example, listing QEB, Wilson's, St Olave's, safe choice."
Most of the country has 6 options around SE England. Yes I agree there is a increasing number exam tourist to SET for Wilson, as PP pointed out, Wilson intake profile is more and more like QE in recent years. But even so a good portions of them will put in one of the six preference when they exhausted the SS schools that in league rank higher than Sutton - there are only 3-4 choice once you take out catchment schools like Tiffin or Latymer.
"we are talking about local applicants though, yes I would definitely agree that SGS is a strong contender as being top choice for some, particularly due to commuting logistics."
We are in agreement on this point, while SET has more and more exam tourist, I believe the majority of the boys sit and passed are still local - within 10 miles of Sutton. So again my criticism is on the poster claim for 90%-95% applicants will pick higher league table Wilson to SGS which I believe is just a baseless perception. Although such believe probably applicable to the demographic group of parents the poster exposed to.