Evening all. Apologies if this has been done before but I've searched through and can't find anything particularly useful. Iâm in the process of transferring to AT. All paperwork in, done and passed TST, sent of driving licence proof, SC Clearance etc and been told to wait for loading onto ATCAB and AT Pre-select. Could anyone please tell me what to expect on these, and what preparation would you suggest? Have a fair knowledge of the trade and been told to keep on top of maths in case they fire any questions. Danke.