661, If you did a sim check with Rob Greenup then it must have been MANY years ago as he is very well established in his retirement.
The sim ride for pilot applicants at QF is purely to see if the applicant can fly on instruments. they are looking for accurate flying - not knowledge of aircraft systems or procedures etc. The classic is probably the closest QF type to a lot of GA aircraft in that the layout of instruments is in the longtime standard T format. You will be assigned by "ATC" headings, altitudes, etc to establish that your instrument scan is of an acceptable standard. My suggestion is to simply relax and fly attitude (not performance). The check pilot should give you instruction on the appropriate attitude v airspeed/configuration prior to the test so just concentrate on your IF.
All the best and I look forward to flying with you.
PS. Don't forget to put your landing gear down on approach!