Hi! Welcome to the site. I think in your situation I'd wait and see the OLSAT results before spending money on independent testing, with cost a concern. Like you, I wouldn't trust OLSAT results as much as independently administered test results from an expert in testing gifted kids-- but the OLSAT will nevertheless give you more info than you have now, may confirm what you believe about your son, and is free.

Striving to increase my rate of flow, and fight forum gloopiness. sick