*Shakes head.* The only real limit on PhotoReading is the one that you give yourself. Most of the time, the only thing that you really need to do, is figure out what works best within the system for YOU.
30 minutes is actually something you can get to relatively quickly after fully understanding the system. In fact, the advanced activation times after years of practice can become phenomonal and unbelievable. I, myself usually take about 30-45 minutes to fully activate a standard oh...say 200 page "How-To" book. And once again - fully activate has many different definitions for several PhotoReaders. For me, that's getting every piece of information out of the book, including the junk I really don't need.
In any case, the benefits of the PhotoReading step, combined with the activation techniques, will allow greater comprehension and retention for all of the information, as well as accelerate more and more the speed at which you can consciously process and deal with it. The PhotoReading step puts all of the information into your long term memory, where it then sorts it all out during what's commonly known as "Incubation Time," which you should know about by now, and then once it's organized you can go through it and retain it.
If you want to - look up the topic I began a little while back called, "What Feels Like Normal May Be Going 120MPH!!" That explains that often times, because of what PhotoReading is considered to be - a natural step in the method of reading and processing printed information - you'll increase in speed over a continuous amount of time and not even realize it.
And believe it or not - Pete Bissonette, is said to be...or probably is...the best PhotoReader there is. 
In fact, Paul, Pete, and Dana are probably three of the fastest out there. On the infomercial a while back, I saw Pete take in a book in what was about 5-7 minutes flat.
Yeppers, you read that correctly. So - keep practicing, and congratulations on your results! 
-youngprer
