Geography is an utter waste of time. I had to put in more effort than it was worth to even get a B. And what people tell you about how you go up 2 grades between mocks & the real thing isn't really true for most subjects. I went down in English Lit [from], stayed the same in Classics, German, Maths & English, went up by one in History and Geography and only really made a significant improvement in Drama, going up 3 grades. And this was with lots of revision. I didn't do mocks in Core/Additonal Science, so I can't comment on that.