In my own experience I have found that speed reading was useful, in the begining, but it became very time consuming and sore on the eyes. To gain and maintain speed, it requires alot of effort and practice, without which your speed suffers. A huge advantage of PRing is that the photoreading step, can be done anywhere you read and if you practice this step alone over a very short period of time ie 1-2 weeks I have found the beginings of spontaneous activation. I tried this with a dictionary, I 'failed' at the dictionary game and thought what the hell, what happens if I'm not testing myself and just see what shows up..all I lose are a few minutes in my day..The end result was people were asking to spell words and give a defintion and I could without much hassel..verbatium has the dictionary..I wasn't able to do this with speed reading.