I have been playing with FMS for a couple months mostly for the heli sim. I have found an unusual bug in the program. with a plane sitting still on the ruunway, I open the throttle and shut it real quick before the plane starts moving much. At this point I can hold full up elevator and the tail of the plane will disappear into the runway! I can also get it to torque roll while in this position. Only the Sukhoi has been able to "fly" out of this position. The rest of the planes are stuck there till you exit and restart the program.
Otherwise, very cool program. It has helped me tremendously with my heli.