Regarding the F4u: Pick one. Either use the vertical OR turn. When using the vertical keep your speed, conserve your E. When turning you want to get slow as possible as fast as you can. Once you are slow, you won't be able to climb worth a damn. You WILL be out-verted once you slow to stall speeds.
So, don't pop your flaps, dump your gear, and then expect to out-yoyo a spitty or something.
Just an FYI.