'Fraid FMS is great for learning but it's simulation is not good enough to do the clever stuff (knife edge, prop hanging, torque rolls, real spins, etc.) You probably need to get a more advanced sim if that's the kind of thing you want to practice (I guess it is if you're looking for Extra/Edge). The usual choces are RFG2, Reflex, AeroflyPro - all cost quite a lot! (But you get what you pay for in this life)

Cliff