Well, you can literally find dozens of variations in the King's Gambit where Black is comfortably equal. The real task is finding something where Black can have a meaningful positional advantage. So far, I have found nothing- but the closest candidate is the Modern Defence 1.e4 e5 2.f4?! d5 (2...ef4 3.Nf3 d5 etc) 3.de5 ef4! and so on. This is also equal, but it does require great accuracy by white.
I play the kings gambit otb at times, at my level would you say this is still dubius? My results are fine with it thus far
No particular reason not to play the Kings Gambit as White. However, I would suggest you do not play this line: 1. e4 e5 2. f4 exf4 3. Bc4 because of the defense starting with 3. Bc4 Nc6 [as per many pages in the book by Shaw]
I play the kings gambit otb at times, at my level would you say this is still dubius?
My results as White are very good. I have never lost in CC play. But, here's the problem ... against players with poor knowledge of the KG I win (always), and against players with good knowledge I draw (almost always). That last observation is enough to question my use of it. Against 2300+ I found I simply could not win as White. I use the Goring now in CC.