I hesitate to say I was ever a Pearl follower, because I've never followed anyone very well. :P But my mom gave me TTUAC and suggested that I follow it. I did read it, and implemented it to some extent.
But it didn't take me very long to realize that wasn't what I wanted for my kids, and that I didn't really care how they would turn out as adults if I had to spank them 394763 a day.