Yeah I reckon you should just stay and have a go at 3unit maths, it probably won't hurt you to keep the subject.
So what would something like 71% on the CSSA trial get me in the real thing? My school is ranked 269 (last years year 12 were very crap compared to our year), and I'm ranked 7th out of about 30 in 3unit. There's only one non 4 unit student ahead of me, the rest are our 4 unit freaks
Anyway, reckon I could score 90 in 3unit maths? Because according to SAM and all that, if you're roughly in the top 27.8% or something you got 90 last year I think.