Not much left for me to say. I'm a corsair nut, and have been since long before the internet. The birdcage is my favorite, it has the best rear views of all the hogs, can be a great perk farmer, and just looks sexy.
All corsairs with the exception of the -4 have poor acceleration, and climb performance. So, If you want to learn the F4U stay out of the -4. It will mask your deficiencies, and let you get into bad habits that will get you killed in the other hogs. The corsair does retain it's E well, but once lost, it takes time to rebuild. The flaps, and rudder are both very effective, but they really drain your E, so use them judiciously. Roll rate is your friend, and can get you out of trouble, or into a favorable position.
Like Violator said getting low and slow can be fun, but normally leads to a quick trip to the tower. As TC said, don't use the landing gear in a dogfight. The main gear was designed and used as a dive brake, and it works great in that role, but really drains to much E to be used in a dogfight. Being successful in the hog is all about energy management.
Sik