The scenario i am about to tell is very ridiculous and strange I have passed all my 13 exams except F1 I recently passed P4.
Now I want to go for F1 CBE asap but dont now how to prepare for will doing kit straight away will be enough for me as I have previous knowledge the kit will do rest were i lack.
Much of the F1 syllabus is unique to that paper and you will not have met these topics in other ACCA exams; of course you will have met many topics too.
I suggest you read our notes and when something is new also listen to the lectures before attempting the kit and exam.