sdavlistentomother, I think you are misinterpreting what I said above.
In terms of tutoring, I did say it was rampant everywhere. I also said that it was particularly prevalent at Wetherby, to deny that is naive. If at 7 and 8+ levels families at the PrePrep hire live-in tutors and also hire motors to come on holidays (yes, this does occur, and I do know someone who tutors many Wetherby boys and charges £100 per hour for his/her services), you can only imagine what the pressure is like at senior school level.
In terms of pressure for places, yes, there is an increase, but the biggest factor in the increase in pressure is the sheer number of exams being taken per child. A child who was placed on the wait list for Latymer will also have taken other exams and if they were a just miss for Latymer, it would be doubtful that they would be left without a spot anywhere. If they are left with absolutely no spot, they were either too ambitious in their list of schools, or (less likely) did not apply to enough of a range of schools.
In terms of top whatever school - what determines your top whatever? GCSE scores? A level results? Oxbridge entry? desirability by the West London set? all round experience? The first 4 don't make a top school to me - they just tell me how selective their intake is. To me, CLSB is a "top 10" school because of all the academically selective schools in London, it has one of the broadest socioeconomic intake for a reasonable price. This broad intake and its location, along with proven good teaching and a long established post-senior school machine, make is a very dynamic school, and one which, according to a high ranking Oxford don I know, produces a great product (in fact, he was telling me to move my son from a school , which according to your criteria would always be top5, and save a pot of money).
I have stated and will restate that the school will be a success in terms of money generated for the parent organization and interms of numbers attending as their is a need for a less academically selective boys school in Central London.