I love playing 1...e5 as Black and play little else nowadays (after coming to the conclusion that the Sicilian Scheveningen is too strategically complex for anyone 2000 or below).

I play the Schliemann v the Ruy Lopez (Love it!)
Two Knights against Italian Game (Love it!)
These two I get most of the time (75% of games)

However I am struggling to find anything good against the dreaded King's Gambit

I have John Emms "Play the Open Games with Black" and whilst I appriciate the lines he gives with 2...exf4 and 3...g5 are theoretically excellent for Black, they are lines to need to know inside out and back-to-front in order not to lose quickly. Therefore NOT FOR ME

I have Marin's "Beating the Open Games" and Davies "Play 1...e5!" both recommending 2...Bc5. However after studying them I don't feel at easy with any of the positions. Therefore NOT FOR ME

Then I came across this a very intersting line in Gallagher's old "King's Gambit" book.

It is a very obscure line buried in the Odds and Ends chapter that he says has not been refuted (at least not when that book was published over 10 yrs ago, which I why I will be interested to see John Shaw's new King's Gambit published by Quality Chess).

It goes

1.e4 e5 2.f4 Nc6 3.Nf3 f5!?

As I play the Schliemann it seems like it fits in well with my current repertoire. Gallgher doesn't give much analysis, but after looking at the analysis he does give and looking independently of Fritz 11, I must say it looks quite nice for Black

Has anyone seen this or got expreience in this line, is it still okay theoretically or is there a big bust that I haven't seen?