This post really interested me.... although I'm not sure about Sutton or Wallingham... You can write on the Tiffin question papers, but not on the answer sheets (except to mark the answers
I know a local tuition center that many parents are sending their children to, to prepare for Tiffin. They seem to be extremely popular in my area right now, but to my dismay, my friend recently told me that they don't allow the children to write on the question papers, so that they can get the children to resit the same paper if they dont score high enough! I was horrified to hear that. I think its vital for children to write on the papers - it helps them to remember sequences, codes, decipher tricky words, etc. That's one of the reasons we found the online Tutors programmes a bit ineffective, as it was purely online and my sons couldn't do simple things like mark the alphabet when counting forward/backwards, etc.
Even for NVR, I always taught my kids to use the process of elimination - cross out all the ones that cant be right, and then your left with about 2 options from which to choose from.
What upset me was the reason they were not allowing the kids to write on the papers was so that it would save them photocopying more papers - but I would have though that was part of the (high) price you pay to go to a tuition center. Perhaps they are being environmentally conscious.... but I doubt it. The icing on the cake was when they told the children they could write on the papers when they offered them mock exams.
Grrr. This is why I DIY.