I've been reading this thread with interest because I am preparing to build two large built in's for our home (the first of many cabinetry projects). My wife is my client! I have a question.

How do you deal with face frame for built-in cabinets against uneven, out of square finished dry wall? My plan was to attach FF later, like Steve, with pin nailer and yellow glue; fitting each piece of FF to the location and it's corresponding dry wall section.

Steve, I am not trying to hi-jack your thread, which is helpful to me, who is coming up with similar situation as you.