For my revision I had already made myself some notes for the BA5 and BA6 exams (1-2 sides with what I deemed major points for the exam). I then made some more general notes on other aspects of bookkeeping (so covering BA4 elements). I used these general notes mainly in my revision rather than the study text.
I sat the online mock for BA7 and printed the report after I had completed the mock exam and obtained my result. I studied the report from the first mock and worked out the weak spots where I dropped marks and needed to improve. I then spoke to my training provider for assistance in the weak areas for their guidance.
After some studying on my weak areas I took the second mock and again printed the report out. Then concentrated on any other weak areas found between the two exams. Worked through the exam questions again especially the ones where I dropped marks to ensure I was now prepared for them. In the run up to the exam just kept refreshing the weak areas in my mind.
In the exam, just tried to keep calm and not rush any of the questions as it is easy to make a silly error. Do both online mocks that are available and you will be well prepared.