ive done BST accelerated and managed to receive a band 6- the best advice id give is basically assign a case study to every section apart from role as well as know your GTDF (graphs table diagrams flowchards) to ensure your section 4 is set. i struggled with section 3 (insider info: my teacher showed me my mark, i got 16 which is pretty bad), so theres not much i can say about this section. Section 2 was my best (39/40), my advice for this is to do the dotpoint Qs, they help alot because BST is just alot of memorising and content dumping.
I have some leftover case study material for operations & marketing, post ur emails below and ill send you over through email (cant upload exceeds limit)
Wow man thanks for the advice!
I would also recommend using Graphs, Tables, Flowcharts etc in your notes, but not in actual exams, idk, I think they are more for conceptual understanding and not for showing off to markers. They literally just want you to recite the syllabus and get marks!
But also try using a variety of case studies and not just Quantas or McDonalds. Common other options are Apple, Dick Smith and your favourite resturant!
Hope this helps!