I'm currently doing my 2nd year in IPT accelerated course (year 10). Last semester we had an assessment worth 20% of HSC which I didn't complete. I think the max score I can get now is band 5, is it worth continuing the subject or not?
It's true, externals make a huge difference and you can easily get a band 6 if you end up acing every exam until then. Just make sure that your aiming to get full marks for every exam.