Do not tell any of the Sqn bosses (OC FJ, OC HATS, OC D) that the last aircraft he signed off on was a load of w**k because it displays a startling misunderstanding of how aircraft are cleared for Service use and indicates that you didn't really bone up on that process.
Don't be afraid to be honest about your own aircraft type but given that this course costs the UK taxpayer a stack of money (and the end product often has to argue the toss with senior industry executives, experienced test pilots and senior officers) you should aim for objectivity.
Speak to the tps on the sqn that you are aiming to end up on and ask them what is going on at the moment. Better still, go and visit for a day.
Know the aerodynamics bit of 3456 but subject to your own academic background (ie if you've got a first in aeronautical engineering then they may expect you to know more than if you have a third in media studies).
Most important, don't talk rubbish - if you don't know, say so.