TBH, listening to the flow of the conversation really makes me think Skyyr is used to fighting Corsair pilots who only know how to dump speed and go to flaps, which are just as prevalent in the Mains as La pilots who only use it as a HO rocket. What makes the Corsair so dangerous with a pilot who knows how to use all its assets to effect is its flexibility:
You're missing the point: it's not a matter of the pilot (because we're discussing equally-skilled pilots), it's a matter of the capabilities of the aircraft. A plane cannot do what it cannot do. Someone who realizes this will exploit the weaknesses of the other aircraft. The best turning aircraft in the world isn't of much use if its faster, better climbing opponent never engages in a turnfight.
The F4U can't match the energy state of the LA-7, everything else being balanced/neutral. If an F4U tries to E-fight, they're setting themselves up to lose. If they try to turnfight against an opponent who already possesses an energy advantage, they automatically allow their opponent an even greater energy advantage. Provided the opponent stays in the energy fight, and given that the LA-7 actually maneuvers better at high speed, the F4U can't recover and will eventually be forced to the deck (unless the LA-7 pilot makes a mistake).
The F4U cannot climb with the LA, and it can't maintain a turn with it without popping flaps. Those two factors alone set it up for a loss. If we had E/M diagrams, you'd find that the F4U simply is outclassed entirely by the LA in the 10-12k altitude range and below (depending on the model).
The only F4U pilots who present a challenge are those who understand that the LA is the dominant plane, and therefore fly aggressively without committing. And even then, the only real threat are the 1c pilots who might be able to connect a snapshot of quad hispanos (as the MG's are relatively ineffective for snapshots).
As Violator said, the F4U really doesn't have an advantage unless it... starts with an alt/speed advantage (which, by definition, is admitting the LA-7 is the dominant aircraft). I'd personally rate Violator as one of the best 1a/1d pilots I've encountered.