I think any of the Paraliminals are useful for PRing either at the beginning, middle or end of the PRing process, since they all guide you to a rexlaxed state which has to be beneficially for PRing and each time you listen, you pay atettion to something different. The 'success' of each tape I think is in your own 'set up' at the beginning of the tape and why you are listening to that particular tape at that particular time of the PR process.

Example, I am presently listening to the prosperity tape, just before I go to sleep because I want to increase my proficiency and skill at using and understanding my manual activation process and what I should pay attention to within myself, to make best use of my reading time. Since listening to the tape I have being playing with my unconscious AWAY from actually PRing books, which can only, I think increase my understanding of my other than conscious mind and the signals that I feel are an important part of PRing. Maybe this is a result of the tape or not, all I know is that I wasn't doing it consciously beforehand!