Bump.
FSIQ is not an average of the other numbers, but a measure of how rare that combination of scores is in the population. Sift through some of the other scores that people post here, and you'll see that often the memory and speed score are lower than the others, and these cause bottlenecks for the child. Your child doesn't have any such blocks.
No one can predict what your DS' future needs are, as they depend on much more than iq. For my kids, though, the gifted pull outs have been really valuable when done in tandem with other interventions, including accelerations and very careful peer and teacher placements.