LOL, "oldpro!"
I'm so glad you trusted yourself. Poor parenting, indeed! Pshaw!
(BTW, I just typo'd "Poop" there instead of "Poor parenting," and I think that may have been a highly accurate Freudian slip instead of just crummy typing!)
The only caveat I'd add to "trust your gut" would be "unless you are deep in the throes of GT denial." :p
Reading at 2 or 3, doing big puzzles at 12-18 months, understanding multiplication at 4, etc.--these are not the behaviors of kids who are "just a little GT." No matter what your gut tells you.
And with that, please carry on...
