Well, i managed to do the exercise. Here are the results i experienced:

I used Personal Genius. I took Nevada Barr's book Track of the Cat.

1. Right side up: while PhRing i noticed the words: concussion & corpse. Basically, i was too concerned w/ imposing myself on the material. And, the 2 times i stopped was absolute zip.

2. Upside down PhRing was much, much better. Although i never had any feelings, sounds or pictures come to me, i found myself stopping 3 times. WOW! Each time was significant.
a) first time i stopped, i just said to myself, "Oh, heck, let's see what's here." I had actually stopped at the most critical time of the book (i assume) b/c it was the part where Anna Pigeon was injured & had fallen down into a deep crevice. She was dripping blood & sweat & had deep scratches on her chest. And she said that this must be what it feels like to die. HELL, i suddenly for the first time knew what processing was....a little, anyway!
b) Next time i just stopped to rest & again said why not give it a try. BUT, i was Very Nervous to do this. I actually hit the Major clue to the whole book (it wasn't a large book though). BUT, i was so impressed! Due to the front cover & the scratches on Anna Pigeon, i had wondered but nothing specific. OK! This is what i had stopped on: They were talking about what if someone wanted the body to be found to make it appear that a lion had done the killing. WOW!
c) So, as i continued PhRing, i stopped close to the beginning. I said that that is a crazy place to stop b/c nothing cool could be happening so close to the b/g. But, after 2 for 2, i did read & immediately saw this: Anna was talking about the day Sheila was killed to her mother & had asked to look at her backpack. So, w/ 3 right?! 3 stops in a book i'd never read b/c i had fantastic success.

EVALUATION: I definitely felt a kind of detachment when doing the book upside down. I felt less threathened by any conscious mind intervention. I sincerely think that w/ practice, i will eventually get the hang of it. I can sense some kind of state of mind that will allow me to feel processing of material in a more direct manner. I clearly felt the 3 stops were b/c of being tired of turning ---but they were the 3 exact spots to stop! So, it couldn't be b/c of being tired. But, i can't put my finger on why i stopped. NOTHING was evident by way of feelings, sounds, or pictures.