Hogboy,
Welcome to the wonderful world of the Hellcat. Once you get used to it, the plane becomes a real monster. The problem is getting used to it. I took my lumps trying to figure it out, and I still do.
Some general advice that is helpful:
Air-to-air: The main thing you need to succeed is to keep your speed at least around 250. At around 250-300, very few planes in the MA are going to be able to deal effectively against the F6F. I do this by rarely pointing my nose above the horizon in a fight and using light control inputs until I absolutely need to really slam it around (i.e. defensive or fighting a really squirrely opponent).
Air-to-ground: I use a steep dive (70-80 degrees) with my throttle all the way back to keep my speed from getting too high for an effective pullout (usually around 400-450 mph). I release at about 1,500-2,500 ft above my target depending on my speed. Rockets, I normally aim just above my target and fire.
Convergence: This is one of those things that really depends on personal tastes. I have mine set to 500, but I know a lot of people that have it set to 350. This is just what you are used to and comfortable with.
As far as my page is concerned, it is not available right now. My ISP changed its domain and I haven't had a chance to upload it to the new site. If you want to read what I have written, go to this site
here. Go to the section that deals with the F6F and my entire write up is available there.
If you have any questions, feel free to ask when you see me in the main or here and I will be happy to help.
-math