On start up, along with the fuel enriched smoke, the cockpit should vibrate (shake) until the engine is fully started.
Running your engine at full manifold pressure for the entire duration of the flight should produce some type of engine fatigue. At the very least, it's a bad idea from the standpoint of fuel conversation. Burn too much otw, you might not have enough to rtb.
I would like to see more pilot head movement in reaction to stress forces from manouvering. Some reaction should be evident to the forces of acceleration, and deceleration. Pulling pos gee should do more than restrict vision, head location should get lower, neg gee should do the reverse.
Regarding the flight envelope, onset of a stall should be signaled by a mild buffeting (and appropiate sound), which gets heavier as the point of departure is approched. Lose the stall horn except for those planes actually equipt with them.
Model planes with opening canopies, and require them to be opened prior to bailing. For a successful bail, the plane needs to be in a condition of flight which would permit bailing. A wildly spinning plane plummeting at 500mph + should not promote a successful bail attempt.
Forget to turn on your oxygen for high altitude flight, and you pass out until the plane reaches lower altitude, or you just die (if you happen to be on autopilot.
Just some thoughts
