Hey, another photoreader from HK here! Vincent, I share your concerns because I'm preparing for a test too...the LSAT! While I agree with Photoread4me's advice in general, I tend to think that once you're confident on the accuracy of the things you've photoread, by all means go ahead and photoread other school books too. As Photoread4me said, school work is too important to risk being tested on via photoreading. But once your photoreading reaches at least the same level of accuracy as your normal reading, I don't see why we shouldn't go for the quicker route instead. Paul Scheele did that with his Graduate School/Ph.D coursework, as mentioned in the first Photoreading CD, and he finished it in an hour and a half!
We Hongers all want efficiency...
p.s. I see that the last post was posted more than a year ago - I hope you guys are still onto Photoreading!
Alex - I strongly recommend conducting a Photoreading seminar in HK - HK people will go crazy for it, as this means more efficiency at work and school - their 2 most important aspects in life.