Mag, thank you for the link - I will read it. The issue is, we really don't know with the sibling. He's clearly very bright, but I'm not sure if he reaches the level of my daughter, and I'm not sure how to handle it.
On the other hand, I don't want fear to drive a bad decision. He seems to be doing fine with skipping a grade...
I suppose my own background drives me a bit...I was designated gifted after getting IQ tests 40 years ago. My sister was never tested and always felt like "she wasn't as smart". Recently mom mother told her the reason why she wasn't tested, is because the program of identification wasn't in place when she was in school. It really threw her for a loop after all these years. Who knows ...