As far as I am aware, there has been no recent discussion of this kind here. What I do know is that once you are past Year 7 intake, in-year admission applicants are not given a VR test, but are tested by the schools themselves on curriculum based work. One admissions officer (not in Gloucs) told me that they prefer that as they can choose what they get then, not just a bunch of children who are very good at VR and not necessarily at anything else. She described the VR test as 'a blunt instrument' which does not always lead to the kind of intake you want. But as far as I know, unless as they have all gone the academy route they decide to break out of the cartel, none of the county's grammars has any plans to change.
I remember one of the mums at our old school who was saying that in order to get her son into Pates he was tutored and was doing VR work twice a day - it was delivered with such pride that I felt really inadequate that I was home tutoring and just giving DD papers at weekends and once in the week. Unfortuantely the poor chap really struggled at Pates for quite a while; I felt desperately sorry for him. I think if you need to train to that level, maybe Pates/grammar isn't the place for your child?