If you want additional information regarding the design of Paraliminal Technology and the historical underpinnings of hypnosis that are part of my early work (1975-1985) you will find my report titled The Foundations Report on our website in the Paraliminal Tapes section. See:
http://www.learningstrategies.com/Paraliminal/Article1.html For purposes of this discussion thread, I'd invite you to consider that hypnotic trance is not the goal of our programs. The opposite is actually desired. My belief is that we have not experienced more of our true potential because we have unwittingly accepted a self-negating trance. The goal of my work is to awaken us from the trance, to the truth of our magnificence.
For example, the most valuable approach to remembering more of what you read is to give yourself a positive, self-enhancing internal pep talk before you read. That is infinitely more practical than having someone place you into deep hypnotic trance then force you to choose a memory.
Play with this idea of de-hypnotizing yourself. If you want more to read on the subject, look into "Trances People Live" by Dr. Stephen Wolinsky.