My son had a similar scatter between PRI and VCI. And he only scored as high as he did on PRI b/c he worked sooo hard he really wanted to give up. He has/had in my opinion a lot of dyslexia symptoms. But he reads over a grade level above and comprehends several grade levels above. He has a visual perception disorder and receives vision therapy. Dyslexia was ruled out ( though I worry he has stealth dyslexia). He also had dysgraphia.