Have you determined what the other exceptionality is? We had the same score spread on the WISC. Dd's FSIQ with the working memory and processing speed included came out at 130. When those two avg scores were dropped and they calculated a GAI using just verbal and perceptual subtests, she was at 147 or 148, I believe. We still are not sure what is going on with her. Her achievement scores in school are wildly erratic as well -- 50s and 60s or 90s.

Study Strategies for Accelerated Learners