Out of interest, try this re processing speed: http://www.brainy-child.com/expert/WISC ... peed.shtml
Re: working memory _ I thought there had been some recent research (proper stuff, not cranky rubbish) which shows that working memory can be improved through work that puts a load on working memory.
How was it tested? Some of these tests are "shallower" than you think. Let's say it was a digit span test - a string of digits is recited to a child and they have to recite it back. The list gets longer until they fail. Or they have to do it backwards too. I get flummoxed in this kind of situation but actually I'm very good at remembering long telephone numbers well very quickly.
I can do a digit span test in reverse fairly easily if I mentally write the numbers down and then "read" them back backwards. Whereas if I don't do this I can barely do it.
Ask the EP for more info rather than taking the tutor's word for it. Some people have a rather old-fashioned view of "dyslexia", particularly some dyslexia specialist tutors.
Your child must have left year 2 above average so why shouldn't he be so by the time of the elevenplus, given the right teaching.
What is the English test in your area and how well do you have to do to pass it?
I'd have a bash anyhow. If your child does have a "problem", which I doubt, any extra tutoring and work will surely only help, even if he does fail. We all take the risk of failing. Perhaps this tutor only wants to take on dead certs (who don't need tutoring anyhow). I'd try a different tutor, and hope that the EP report gets you some exam concessions if needed.