thanks for the replies everyone. T.I.P.S.Y I found your comment about more people opting to sit Grammar school exams over the independent ones, particularly this year. Can I ask why that is please? If the answers an obvious - apologies in advance for my dimness!!
By the way my username is irritating so you can miss out the full stops!
I assume that if the GS and independent school have their tests on the same day then most people will try out for the GS because often people only sit the independent school exam as a back-up plan incase their child isn't accepted for the GS. I may be wong but I would have thought that there will be more sitting for a grammar school place than a private school place due to most not being able to afford the private school fees. If I had to choose I'd rather sit for the GS school so that we would have the choice whether to pay or not. Of course this may not be the case, but maybe if your child is through to the second test then this does not apply.