Welcome to the IREX question and answer forum. Please feel free to post your questions but more importantly also suggest answers for your forum colleagues. Bob himself or one of the other tutors will get to your question as soon as we can.
I can't guarantee that there will never be a question like that but all of our students have been bringing in the extracts for years and I've never heard anyone say they had a problem. CASA have approved them for use in the exam - but again, that's not a guarantee.