It is going to be very uncomfortable to afford all seven years at senior school for our family privately, but we can do five. I'm not sure what universities assess on initially or when you apply - do they look mostly at GCSE results, or AS level results?
So, would you:
a) send to single sex ex-grammar state school from 11-13 (friends are going there - this is a plus as DC1 is sensitive) but then take out at 13+ to a school where most of the intake at that age is likely to be boarding (we will be day) and stay for 6th form. The private school has good pastoral care.
b) send to private school from 11-16 and possibly have to remove for A levels. A lot of local privately educated A level students move to the ex-grammar for A levels. It is mixed at that stage.