I haven't seen all the orders for all the different units, but if F4Us are being assigned as anything other than CV defense, it's a misuse of assets. These planes never could escort anything to Japan. They have short range. With MA 2x burn they have about 30 minutes of flight time. Taking 2x DTs literally DOUBLES the fuel storage onboard.
These planes could not and did not make it to Japan without a CV parked offshore (meaning, after the war was won, basically) to launch them.
So, if you get tasked with escort in this FSO you're not going to get a F4u. Most likely. That's how it should be. You don't get to CHOOSE your mission profile. The frame's CO does that for you.
You'd no more try escorting B-25s in I-16s, eh?