As we are so close to the real tests, I would not be purchasing the whole range. Perhaps Vol 1 [50 of each type] OR Vol 2 [12 tests using the 21 types]
http://www.elevenplusexams.co.uk/cd/the ... lume-1.php
http://www.elevenplusexams.co.uk/cd/the ... lume-2.php
I would be inclined to concentrate on pen and paper. Walsh use some complex vocabulary, you could look at these with your son, a section at a time. [not the age 9-10]
http://www.elevenplusexams.co.uk/books/ ... p?g=f&p=23
Have you seen my word /compound word lists together with games in the free download section?
http://www.elevenplusexams.co.uk/revisi ... wnload.php