A while back, my son had gotten the following scores on a WISC IV.
VCI-126
PRI-110
WM-123
PSI-146
GAI - 122
FSIQ-132

There seems to be about a 10 point discrepancy between his GAI and his FSIQ. Is there any significance for having this discrepancy? Moreover, what would be a better indication of his abilities, FSIQ or GAI?