Before I start, I'd like to say I'm living proof that a high IQ does not necessarily benefit a person in life, and that I do not 'feel' as smart as I supposedly am. I don't remember the tests I took, except that there were a lot of them and I was very highly gifted.
I think giftedness is classified as follows, I could be wrong:
Gifted (Moderately)
Highly Gifted
Very Highly Gifted
Exceptionally Gifted
Profoundly Gifted
What in the world is a very highly gifted intelligence in numbers?