wordfactory, please don't piss on my opinions simply because they are not aligned with yours.
FWIW, my ds has been in both private and state. If I had thought he had the stamina to manage a selective secondary, I might well have gone for it (if I could be assured of the fees). My decision was to go state for secondary, based on what was available in our area. In our area, we have outstanding state secondaries, who regularly send pupils off to Oxbridge. Indeed, all the children in year seven go to Cambridge for the day, are shown around by current students... they know that if they work really hard, this is within their grasp.
I can also see quite clearly that the children in my family who have been privately educated from start to finish have an advantage. That is a mixture of school and home. And an educated home, actually an educated mother, is a better indicator of academic success that money alone.
And of course the self selecting that occurs when you have to pay for education.
So while I completely get that a private education can work to the advantage of most competent children, I also see how excluding it is...nobody too SEN...nobody too stupid.
Of course your results will be 'better' but then perhaps one would do well to inform oneself of added value!
My ds' core sets are of grammar school standard. For the rest he mixes.
Lets see how his school does this year, its first gcse year. In one of the most deprived areas in the UK.