You cannot assume the Corsairs were wrecked upon landing... And why would u assume that the Corsair pilots would avoid any combat from any fighter, odds in favor or against???
"Oh my, so many Shidens... Lets run for home ..."
NOT...
92.662% of all fighter pilots had that attitude of invincibility in the air.. If u didnt, u didnt live very long in a dogfight...
Shidens were not the only Jap fighter that fired high calibre rounds at the Corsair ...
The higher calibre round is definatly more destructive, but the Corsair could take a hell of alot of damage and still be put down on the ground intact, and repairable for another days sortie...
I saw a pic of a Corsair with almost half his left wing sheared off from a power line, and that plane was on the ground, intact... Also saw a pic of a Corsair wing that had a hole in it that u could have stuck ur whole body through...