you mean just "A Second Chance" ?
In general, assuming we're talking about the entire series, I was most pleased with the scene with Alma, and the chapters on Brokeback in "Taking Chances", well... ok, the initial "making a pass" scene at the hotel, too. Those three!
The most difficult has been writing the police/mystery/detective stuff, and part of my reasoning for resolving it in a dramatic rather than an investigative manner. The story had to come back to Laramie somehow, and I couldn't see the normally laconic and "never shot anyone" Ellery having a shootout with his suspect somewhere in an Austin gay bar... too "Miami Vice" if you know what I mean, and way off the track of the impact of the murder on its principals. I picked the brains of my lawyer friend to the maximum extent possible for what I did write of the investigation, background check, etc. , and the symmetry of Worrell turning berserk as soon as he knew someone was looking for him, and stalking Ellery in turn, seemed psychologically satisfying and gave me a chance to bring Ennis center stage to face Jack's killer, something that has helped him. (iMHO)
And keeping originality in the sex chapters has of course... been an ongoing challenge!
And I am sitting here devourinig my dinner in front of an open chat window if anyone would like to join up.