TinMan,
I started 2 years ago PRing and Stereoreading .. I bought the book, found it very interesting, but didn't get very far with it. Then I found the Stereoreading pages (http://www.exploreit.net/stereoreading/index.htm)! They have really great excercises for the eyes and it also helps you to relax more while maintaining the Photo/StereoFocus.
Maybe this helps You some... At least it's a lot of fun!
-Purjo