PWB
We agree on John Fisher more than we disagree-we both wanted a Fisher education for our sons. I am just guessing here but you seem to be one of the large (as am I) number of middle-class parents who sent their boys post-prep school to JF.
No right thinking parents having shelled out fees for 3-7 years at Cumnor House, Laleham Lea or elsewhere would have sent their child to any secondary school other than John Fisher (Croydon, Surrey) or The Oratory (Fulham) as it would have been a waste of fees (by sending them to a bog standard comp) or to one of the independents (Whitgift, Trinity or Royal Russell) as a comparative education was received at John Fisher/Oratory.
I don't think you can accuse me of attempting to fee-dodge (if that is what you are implying) having tried to get my son into Fisher in the 90's. Just because some parents can afford prep-school fees, tutoring or coaching/interview prep should not prevent them from applying to schools like John Fisher or other selective schools like the Sutton Grammars now or London Oratory then. Besides how would you enforce that system?
If we are being completely honest with ourselves, John Fisher in the 1990's and London Oratory until 2005/06 provided a highly-selective educational environment for well-behaved, middle-class boys to flourish, choristers to received outstanding education in the state sector, music places for the gifted and some ability places. Eloquent parents were vetted to ensure they were of the right stuff for Fisher and everybody was happy. 
It's just a real shame now that so many boys wont have the chance to be selected for places at John Fisher or London Oratory- or similar schools. Yes there was a large prep-school cohort but many boys came from good state primaries also. [fhappy]