I truly belive you are going through the tests far too quickly, you have another 7/8 months before the real tests....slow down!
There are not enough Bucks related tests around to complete nearly every day.
The order of tests should be ...IPS - 10 tests, The Tutors - 12 tests [pen and paper not the CDs] Susan Daughtrey- 4 test- soon I believe to be 8 tests [Bright Sparks only NOT her books 1-7] lastly NFER- 4 tests [ remembering that these test do NOT include 6 types of questions ie HIKNOS as identified by IPS or 16 - 21 on The Tutors Demo CD vol 1]
As work in between you could use AFN [these are easier tests] IPS additional questions and The Tutors CDs vol 1 and 2
http://www.elevenplusexams.co.uk/cd/the ... lume-1.php
http://www.elevenplusexams.co.uk/cd/the ... lume-2.php
You probably need to do some rubbing out on the tests your child has already completed, gradually re introducing them in the above order.
Glad to see you have registered. IPS currently only produce 10 tests, not 20. They do have a further 3 in their method and technique book.