"The best propeller-driven aircraft ever", is a fairly wild & irrelevant statement.

However --------- with fighters, stability was (& is) a secondary consideration to agility. Right thrust can inhibit maneuverability, or introduce tracking problems at varying power settings. It was generally not part of the package in fighter stability fixes.

Most WWII fighters were a dangerous handfull at high AOA &/or at low speeds with sudden power application. The Luftwaffe lost more Bf 109's in take-off accidents than they did to enemy action.

The Griffon-powered Spitfires were completely unmanageable with sudden full throttle on take-off roll.

The Corsair was another killer with injudicious throttle application during take-off, or a missed approach.