I think white's trouble began with 5.h4 but NCO and MCO gives this as the main line. MCO is never helpful for opening analysis, I think I should throw it out. But NCO gives 9.g3 with unclear complications. Point of g3 is to reclaim f4 and solve problem of what the knight on e2 is actually doing. I think this position is play more in corrpondence my database turns up only 3 games. And out of those 3 games only 1 GM Game Shulman - Sulskis Minsk 1996. Sulkis play fxg3 and found out his pieces were misplaced. So f3 looks to be correct. 9...f3 10.Nf4 black pieces are poorly placed to organize pressure against white's center. So Black needs to rearrange his pieces I feel white most likely has 3 tempi for the pawn but if black redeploys effectively he should be winning. This was the problem with Fischer he over values material in complicated positions what may work for him may not work for you.
MCO and NCO have 8...c6 instead of ...Be6 so this could be the reason for reduce number of games in my database. yep that's the reason, now there is 28 games and more than 1 GM game. Unless you find something with black in this line I would recommend switching to 8...c6.
So, you would recommend 8. ...c6 as opposed to Be6? With Be6, I was hoping to get some better development with an added presence in the center (my main objective was the hope that he would eventually move his bishop to c2 and trap himself - which he did) and put more pressure on his kingside, which was already in some trouble after I jammed up his knight. Perhaps I'm not looking as far ahead into it as you are, but what would be the benefits of c6 over Be6, if I may ask?
I was just wondering what everyone thought about black's best response to the King's Gambit main line (1. e2-e4...e7-e5, 2. f2-f4...e5xf4, 3. Ng1-f3...)
My personal opinion is the moveset 1. e2-e4...e7-e5, 2. f2-f4...e5xf4, 3. Ng1-f3...d7-d6 (I believe Bobby Fischer once claimed this to be the refutation of the Main Line). I scored big using this variation back on chess.ac.
Any thoughts?