Software Design is one of the average to low scaling subjects, it is scaled lower than the rest of my subjects (eng adv, chem, phys, ext math, math 2unit) but it isnt that hard.
I dont know where your getting the "I'ts a hard course" stuff from. I was told there was pretty much a prerequisite for the course of having done computer studies in yr 9 and 10. I didnt do it, and i have a somewhat incompetent teacher but i still manage to flogg out scores of 90-100%. Is it that you perceive it to be hard or is it just that im a bit blind?