Well having just finished my 5 day test I would say:
1. In 2 1/2 hours I have got 80+% of what I could have hoped for from the text
2. I do find staying focused in photofocus hard, i guess this will improve with practice
3. I found the "purpose" definition hard but when i started thinking about the end result in an nlp fashion I found it much easier, ie:
a. in what way will the information I learn help me towards my goals
b. so in that case what level of information do I need
c. are there any specific points i need to get (ie the key questions to consider that I have formulated in prior previews or postviews)
d. how will i know when I've got what I want?
e. wow, that sounds cool, ok let's go for it!
4. I used "art of speed reading people" as my book and from knowing very little I have been able to fairly accurately identify my test subjects' MBTI in a few seconds. In fact in one case, my "hunch" was spot on and it was only when I consciously analysed it did I get it slightly wrong!
5. Mind maps are great for extracting the information. I mind map a lot anyway and so it is very convenient to use this approach.
So my conclusion is that this certainly works for me, but I need to practice, and I need to put as much effort in to the prepare stage as I do in to the photoread stage.
I think I'll photoread the Photoreading book next and continue using it with every work document I receive.
I am keen to try it out on fiction but I don't yet see how this really works...?