What I was trying to do was put some wrinkles in some clothing. Just a few to see how they looked in Poser.

However, I think I figured out why I was gettting much  in the way of results. It was because i was going with the smooth shading instead of flat. I could see the sculpting better in the Flat shading mode than in Smooth. Also I had to go with another level or two of subdivision. I made a few subtle wrinkles in the dress above, but I still have a lot more to figure out on how to do this.