Here i go again, posting about some else's catch...since it was already on AC, I figure it's ok....and no comments from you Chris
If you look at the light reflection on the guys face and the light reflection on the gill...this would go against the cut and paste theory....
The light is coming from the right direction, plus look at the shadows in the background.....he would have to be standing somewhat behind the fish for this effect.....It appears real to me. If it is fake...CLASSIC....got a few hairs raised.
E: Also...it looks like the guys shoulder is casting a shadow on the fish
Edit: I went back to the original post and checked out a link about a 400 pounder that some diver speared at 435 feet....it is smaller then this one....the more i look at it, the more it does appear fake..cut, enlarge, and paste. That 400 pounder was 2 feet smaller 1/4 less in girth.