Talk with everyone you can find who took their test with that particular examiner. Everyone uses the same PTS, but everyone has their pet strong points.
Talk to the examiner. Most people just call and ask "how much do you weigh". Ask if there is a particular ground or flight lesson they would like to see. They may or may not tell you. If they do, make the best darn lesson you possibly can. Use PowerPoint, make handouts, and practice. Remember, the examiner sees the same thing again and again and again. If you can do a standout presentation, you are ahead of the game of making a good impression.
Concentrate on the oral. Don't waste time and money over training for the flight portion. The test is 90% over once you get past the oral.