Hmm, I have a feeling that reading during AP is much like LD. Small details might be very difficult to see clearly. To what extent, I'm not sure, but it's definitely worth a try. Maybe to make it easier, take, say, 5 cards, and put them at random face up or face down on a table or the floor. I'd suspect you'd have an easier time distinguishing between the back and front of cards rather than the number/face on them during AP!