Are you sure about Mater not being a weak cohort? A lot of students this year really don't give a shit.
Well I used the 2011 statistics and you guys did rather well. 6 study scores above 40 isn't actually that bad, like, it's much, much better than many other schools who consistently get no English study scores above 40 every year. But I guess what you have to consider as well is that it varies across years, like, just because last year's cohort did alright doesn't mean that this year's cohort will as well, so I guess if you're right and a lot of them actually don't give a shit then yeah, this year's cohort will be weaker than last year.
Mhmm. Escpecially for English. There are four classes (I don't know if that group is large or small in the scheme of things) and most people can't write well, haven't read the book/play or just don't care.
Well, the issue is, what's important is that the people who have ranked higher than you do really well on the exam. So the thing is, you don't have to worry about how everyone else below you will perform, because if they do really badly, they won't drag down your SACs, it's those who are going to achieve highly.
So as long as you have a good top bracket, you should be alright. Like, say, with my cohort last year, a pretty strong English cohort, even if I added 100 people who didn't care about English at all and just did crap, it wouldn't alter my mark because they'd be ranked below me.