@Littletreefrog that sounds awful - apart from anything else a 4 is a pass. It's too early to be so negative. 5 hours of revision is unsustainable.
We had a Y11 meeting at Dd's grammar school last week and it felt like a bit of a waste of time. It was mainly telling us to support the children and give them various techniques for learning. Given it's a group of very engaged parents, it felt slightly unnecessary. But they did say aim for an 80:20 break down. If your child is doing what you expect 80% of the time, you should feel happy!
The most interesting part was about A levels which they want them to choose by the start of December, which feels incredibly early. If they stay on, they may be able to switch after results but it depends on spaces. There's another open day in November to discuss A level choices and to be honest, I was a bit annoyed they couldn't have just bundled it all in together rather than making us trek to school twice. It has a huge catchment over a massive area of London so it's a bit of a pain to get there for many parents.