Yes 4 x 1 hr sessions, so one a week until we went on holiday. I went to a grammar school and tutoring was absolutely not a thing, so sort of disagreed with it. My view was the 4 hours should help him understand the way the exam was structured, and maybe cover some bits he likely wouldn't have covered yet at school.
We used a local uni student who had sat for Sutton but ended up with a scholarship for a private school. His view was that DS was answering all the second stage stuff confidently so he was sure that he'd be fine.
As such, I would very much suspect a lot of it was exam technique - he never sat a full exam before the day, and lets be honest, there will be a pattern in how best to identify and answer some questions for the exam which just comes with repetition.
I share because I'm sure in years to come, someone like me will be on here thinking 'SURELY my bright kid can just rock up and do the exam?' and trying to gauge how much work is really required. I would probably suggest more than 4 hours in total, with a nice student who definitely wasn't a trained teacher!😂
We are lucky in that it was a bit of a panicked choice, worrying about catchment and entry to our local schools but in actual fact we have 4 excellent local schools, one on the up, and Wilsons would have made a nice 6th choice - but it wasn't 'local' (40min commute on public transport) and is single sex. In an ideal world, I'd always prefer mixed and walkable if needed.
So for us, its be a great experience for him (exam sitting), a good lesson about creating potential opportunities for yourself, and a REALLLLLY good lesson in 'just because you're smart, doesn't mean you don't need to work at stuff'.