Here's a tidbit if you care....normally when you launch, if you have seen green, you've waited too long. You can still race and win but a seasoned drag racer knows to leave just as the last yellow comes on, but you have to be consistent and right on; leaving too soon and you will "red light" and lose...leave too late (aka "green light") and if your opponent knows he will leave on the last yellow and then you'll be having to play catch up if you want to win.
Of course if you're running solo, you can green light all you want and win, just don't let your friends see your time slips or they might rib ya about sleeping at the wheel.
A perfect light they say is .500, though some other classes go with a .400 light.
I'm guessing you just did this for fun though and not for any real gain...otherwise a gear swap to a lower gear would almost certainly lower your e.t.'s.