I'd call one of the psychologists on the Hoagies list and discuss your concerns about the age and testing. Dr. Amend was very helpful on the phone answering my questions before I scheduled appointments for DD7 and DD5. http://www.hoagiesgifted.org/psychologists.htm

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since apparently the data points they mention generally when they talk about giftedness only count when they are acheived by others
Been there before and it stinks. Having the independent testing data helped me get through that nonsense. Hang in there and sending good thoughts your way.