Seeker Yes 
yellowtip Yes Given the backgrounds of my peers, there can have been no middle class bias, in fact I suspect that there was such a pride in the tradition of giving bright working class pupils a chance of Grammar School education, my mother had been one, that the bias may have been the other way (though there were of course fee paying pupils). Interestingly though in a city that had a population that was 30% bme, mostly Muslim, there was one Hindu girl and one Jamaican girl, though that subsequently changed. I don't know if that reflected a fairly recent immigration, it had happened in the last ten years, there were plenty of Eastern European girls from the previous wave of immigration, or bias but we were certainly conscious of it.