What's the best launch techique on a stock '03 Cobra?

[KenCobra03]

What's the best style of launching?
I just walked it out easy and laid into
it and speed shifted at 6400 rpm.
I'm talking a bone stock 03 Cobra here.
Should be 12.8-13.1 ?

 

[Lethalchem]

I bring the revs from 2-2.5k when using street tires, then try not to let it bog or break loose.

 

[2F2F]

I bring the revs to 2K and then slip the clutch just a bit.