Way I feel at the moment is that if he continues to go there then I will buy the "How to do 11+" books, and some practice questions, and do quite a bit with him myself at home, and then see what he does with the tutor as a supplement to this, a bonus.
That what some people on this forum do. There was a poll a while ago and the quite a few had a tutor and did a bit at home too. I guess it all boils down to how confident you feel about the tutor. Sutton Grammar also does some mock test and I think they are quite good practice too http://www.suttongrammar.sutton.sch.uk/ ... ests.shtml
and since you are just starting you may pick a slightly later date to give him a chance to work through a bit more stuff.
Your font size is a bit hard to read, you can edit you original post and make the size normal.