Ponz`s statement about Black "only trying to equalize" is simply not true as we can see in this thread. "Holes" in his analysis allows Black to have even better position. See the last one for example.
It`s unfair to belittle opening, only because your claim about it being "unsound" appeared to be false.
You guys are overwhelming me. I will have to continue another day.
However I will go back to my point and that is in this gambit
Black has to make the move d5-d4 to try and set up a space advantage and that takes time if you are on the black side of a gambit. Later Black has to play Ne7 then Ng6 then Nxe5--3 moves just to gain back the Pawn and in the meantime
white 0-0s and makes a very nice fianchetto bishop and after the pawn is regained White has a lead in development and a position which is more than the usual opening advantage and that is not what a gambiteer would like for his gambit.
Of course Black has many tries to equalize but he is only trying to equalize in the postion after the 9th move. I am not saying the gambit is refuted as that would, in truth, be impossible to verify but I am saying it is a hard line to follow if White plays correctly in the opening.