I have 2 DSs, each from a different marriage. DS24 was identified as gifted when we moved to NC (VT doesn't have state laws concerning gifted programs) when he was in the fifth grade. We did not have him tested, though he did take an SAT in 7th grade through Duke Tip.
My DS11 was identified as GT in first grade but honestly, because he is so completely different from his DSB, both in personality and strengths, we were surprised. But we always seem to be surprised by our DS11, to a fault. We've not had him tested either but he recently took the Explore Test and did very well.