I know you didn't.....here's what's always been my thinking......agree or disagree, but it's what I think. I've never seen it in print, but it makes sense to "ME".
For stock vehicles on the street, even those considered muscle cars, if they are on the STREET, Dexron works "better"as it shifts smooth right off the bat. No warm up time needed. Light to moderate duty and will work "just fine".
But if one is going to be raced on a regular basis, or dedicated race, gear oil. That's my thinkin, and I'm stickin to it. lol