There is no hard and fast rule for how much of a GAI/CPI difference definitely constitutes a 2e, although there are base rates that indicate whether it is highly unusual or rare. I would be substantially more suspicious if either WMI or PSI were normatively low (below 85). But yes, it is quite possible that someone with VCI and PRI in the 130s, but WMI and PSI closer to 100, could have a second e.
Achievement was mentioned upthread. That is definitely where I would look next, especially since it's a key component of every model of learning disabilities out there. If you have them, are any of his achievement scores near or below 100? If you don't have them, and have functional concerns about his academic performance, then you might consider additional testing, preferably with the KTEA-3 or WJIV achievement.
And don't forget asynchrony!
