Hi! Thank you for all the information. We are seriously considering boarding school for my son. We are undecided about my daughter as she is a bit young I think. Would like one close to London or perhaps in the West Country. 
Is there a good school that you can recommend for him? He is a very good student but would like a boarding school that supports him as he does well as we pay for a math tutor. Also, with the culture change and different system I would entertain holding him back a year. But either way is fine. 
Thank you all of your help! 
Holly Cook