What report do you already have for him? An EP report? If so, does it state how severe the dyslexia is? In layman's terms, EPs often use terms for dyslexia such as "mild", "moderate" and "severe" (more detailed reports will go on and say DC's percentile scoring) Do not mistake the term "moderate" to mean "medium" (as I did with my son). It does not. It means "nearly-severe". In fact, "moderate" means that it is so severe that it should be ringing huge alarm bells with all involved with DC". Two years after my DS's original "moderate" dx, his went to "severe" - so severe that the esteemed EP who set up the framework for "dyslexia friendly schools" (Dr LP) strongly recommended that my child was not placed in a "dyslexia friendly school" but in a school specifically for dyslexic children. So I recommend that you totally get to grips with your DS's dx and exactly where he is ie how far behind, who severe the dyslexia is, what percentile he's on.
Toe by Toe is very good but they should be doing far far more than just that for SA+. If possible, try to do some of the Toe by Toe sessions yourself with your child. As I home ed'ed my son, I did a session every day. It was a huge eye opener to me to see exactly how severe his problems were - not just dyslexia but other issues such as working memory issues and severe anxiety around literacy tasks showed up with our daily Toe by Toe sessions. I had regular sessions of Toe by Toe where my DS hurled the book at me or across the room (or both) and broke down into floods of tears. It highlighted to me just how difficult literacy tasks were for him. I had to give lengthy detailed evidence in Tribunal to a judge about these Toe by Toe sessions. I hate that poxy red book
For a charity, I strongly recommend Dyslexia Action. They gave my DS his original dx and were very good and thorough. After them, I got two EP reports for two Tribunals to get DS into an indie dyslexia school (Dr LP and BP).
With your local tutor - what methods/techniques are they using? Does the tutor provide you with progress/information/help at home? When my DS was home ed'ed, my DS indie dyslexic tutors became my "new best friends" and, ultimately, their evidence was the final nail in the coffin that persuaded a judge that my DS's dyslexia was so severe that he needed to be in a indie ss.
What qualifications does the local dyslexic tutor have? I had a big dust up at Tribunal with my LA who stated that children with dyslexia/literacy problems don't need to be taught by a teacher with dyslexia qualifications - a TA would suffice. In fact, my local authority (which you've perhaps guessed from my nickname, is Essex County Council) went onto say at Tribunal that dyslexia as a condition does not exist but is a speech and language disorder 
My experts, and more importantly, fortunately the Judge, disagreed. The Judge ruled that my severely dyslexic child needed to be taught by properly qualified teachers with post-graduate training in teaching dyslexic children.
Watch out for other problems such as anxiety over literacy. Being a class joker is a coping mechanism to hide literacy problems (as a fellow severe dyslexic, it was one I used myself back in the dark ages when I was at school). But anxiety and low self-esteem is a huge problem for dyslexic children.
After a 18 month legal fight with Essex County Council - which included 12 months home education - my son is now at a indie ss for dyslexic children. Two weeks in and I'm starting to see, for the first time in years, the little boy I once knew before a mainstream aggressive school ground him down into a former shadow of himself. We still have a very very long way to go with his dyslexia and other problems, but he's finally on his way.
Good luck. LA tend to brush off dyslexic children as a minor problem - but it's not it's a huge issue.