We are preparing for Chelmsford / Colchester. He has almost worked through the "more fourth" level so hopefully we'll get some time to do some on 5th level as well. He has been working through the Bond books with his tutor (once a week) and at home (approx. 1/2 hour per day at the moment). He is doing well with his Maths and VR but we are not timing him at the moment. He finds English the hardest (from what I hear this is a typical boy thing) but reads a lot - it seems to depend on what type of text is in the paper.
My instinct would be to really intensify preparations now as there is not that much time left before the test so I was wondering how other parents / tutors prepare in the last few weeks. He has mock tests lined up and we have some additional papers we can do at home but don't want to go over the top