Mitchell you have the DA TC system. Ed Sims and I were trying different launch parameters and found out what works pretty good as for as a safe but fast launch. First check with Shadowman to see if you have the latest TC tune. Then press the launch button hold the clutch in, keep the gas pedal to the metal. Now at a constant rate of speed release the clutch, not too fast and not too slow. Too fast and you will bog at the line, too slow and you will fry your clutch. Since you have full throttle shifting you can keep the pedal down while just using the clutch and gear shift to move up the gears.
I still would think the F458 might be faster until you are in top of 2nd or start of 3rd then your Whippled FGT would leave the F458 behind. Can't beat those shift times of the F458.