This is good stuff, he does a very good series. Unfortunately, I really miss Soda's pages. The issue I'm running into the most is I don't know the "tricks" like flaps, rudder, dropping landing gear, fuel tank selection, etc.
For a lot of what you're looking for (and this applies to all rides, really, not just US) in regard to using flaps and rudder can be learned by 1v1 with someone.
Fuel varies across the rides, but if you do those 1v1 with 50% fuel, you'll be able to figure what initial loadout works for your mission. I'm fairly certain the auto fuel burn covers what a lot of people did manually in wayback times, like burning off the aux tail in the pony, or lowering one of the wing tanks on a hog to a certain level.
Ord all depends on your mission and some loadouts, like rocket rails affect "fighting" performance.
Dropping landing gear is a desperation measure and not limited to f4u's, and again, doing those 1v1's will help you figure out when to do it.
Once you know your ride's envelope, possibilities open up.
Dive bombing just takes practice.