Switch back to 15...fxg6. It is much more sound. Apparantly soundness is something evil for you. You belong in the material-means-nothing category so don´t worry about your pieces.

16.g5 Ne8 17. Bxg7+ Nxg7 leaves White 2 pawns up. But hey, you are an attacking player, so pawns mean nothing, You continue after 20.f4 (Fritz) with Bb3 21.Bd3 Ne6 intending Nd4 with exactly the play you deserve in this line: very unclear and almost impossible to analyse correctly.

16.e5 looks better but you have 16...bxa3 17.exf6 axb2+ 18.Bxb2 exf6 intending 19...Rxb2.

You don´t like to be a piece down for an attack? Then why do you play so ultrasharp sidelines. Rule of thumb: Ultrasharp lines, sac all your pieces, normal Dragon lines, play sound positional chess.

Stefan

I haven't had the chance to look at these lines in-depth yet, but I think black should be fine and I'll try to post something. However, unless I am mistaken, I don't think this line is your biggest concern as 16. Nd5! is given by pretty much every source (including Ward and Tiviakov) as a refutation of 15...b4.