Don’t forget, we’ve been told a few times of the Cylon ability to “project” into their environment. In a scene on a basestar, there was the bit where a Doral and a Six passed each other in a corridor, and we briefly saw it happening in a forest, which is where one of them preferred to visualize him- or herself. Also (and this might be in a deleted scene; don’t remember) Athena explained the same ability to Roslin after their shared dream in the opera house. Tigh may very well be discovering the same facility in himself, without realizing what it is.
I just looked at the scene again. (The benefits of a work-from home gig. :))
The Doral has the gun to Baltar’s temple and is shouting, “Sign it, sign your name, sign it.” This is after the Six in the room has objected, saying “just because you want to do this doesn’t mean you can also drag him into sin with you,” and Doral shot her in the forehead.
While Doral is yelling, Baltar looks up as the Head Six appears. In his mind, they are alone in the room.
Head Six: “There’s nothing you can do, Gaius. It’ll be okay.”
Baltar: “It’s you. … Help me.”
Head Six: “You have to sign it. They’ll kill you if you don’t.”
There’s a cutaway to Doral barking “sign it, sign your name,” holding a fistful of Baltar’s hair. Baltar is paralyzed with terror. Then back to the Six fantasy.
Baltar: “I can’t. I won’t. You can’t force m–”
Head Six takes his face in her hands and turns him to look at her.
Head Six: “Sometimes you have to do things you hate so you can survive to fight another day.”
Baltar slowly looks away from her, back down to the document. And sees that his signature is now on the paper.
So, no, not a delaying tactic. A simple action.