I used to "practice" photoreading. I got nowhere. Nowadays I choose to look at it as "practicing by doing." This attitude enduces an ease that is lacking in just "practice." If you practice, you are trying to reach some goal, but by definition, never reaching it, because you are only "practicing," so just do it, play with it, and reap the benefits of -being- a photoreader. Just because you aren't a master photoreader, does not mean you don't photoread. If someone asks you how you goes through books so fast, don't say, "I'm practicing photoreading," just tell the truth, and say, "I'm a photoreader." You could be the worst photoreader on earth, but you would still be one step above the guy who is only practicing to one day in the distance futures hopes to become a photoreader. I hope this helps. It's a bit of a rant, but hey, that's life.
Enjoy.