My question:
Has anyone had experiences with siblings with THAT much of a gap where there wasn't a learning issue?
I am fairly certain that my brother, sister and I have a gap in IQ range where I am more average and they are probably in the bright average range. Reason: my father is PG and my mother is average, so it's a genetic thing. My dd6 is the one blessed with Grandpa's brains, she isn't PG but she is probably in the "lower" end of HG especially in math and science (also what Grandpa excels in).
