Hi
I've just bitten the bullet and paid for a PDF of the game Naval Thunder.
After studying the rulebook I would have to say that Naval War is the superior game.
Although Naval Thunder seems to be a good game it's very "Old School" with a lot of record keeping and a more "traditional combat" method.
I really believe your game has more potential and if Naval Thunder is a viable, marketable game then so is Naval War which is a more presentable game.
I guess what I'm saying is don't give up working on it and maybe you can sell the PDF online as Naval Thunder does?