From what I hear, what the recruiters are looking for is a sound working knowledge of the IFR rules and an ability to learn.
Hence,
KNOW your AIP.
KNOW the brief you have been sent.
Listen VERY carefully to any briefing just prior to your ride.
Do not expect too much seat of the pants input.
If you make a boo-boo recover, keep on flying and do not get hung up on it.
You are not being assessed for your type rating, rather you need to show an upward learning curve.
Try, if at all possible, to have a little time to sit in the cockpit of the type in question to help minimise the "gee whiz" factor.
A little time with a sim training organisation may be a good investment to bring your scan up to speed.
KEEP TRIMMING - sims are notoriously unstable, so make a point of opening your hand frequently to see how the trim is. This also helps avoid "gorilla fist" which destroys your fine motor skills.
Good luck!!
