ok here is my take on it.
#1 I never power brake, its a waste and doenst help (Ive tried many,many ways to launch and thats not the way, plus its soooo bad for the tranny

this is how its done
for gear selector our trannies were designed to shift faster through the gears if you leave it in 2nd (shift time is decreased by the TCM)
this also allows you to redline 2nd before the tranny automatically shifts to 3rd at redline

never, never slam on the gas from a dead stop (get a datalogger and see what happens to your ignition timing.) always give it 50% throttle from a dead stop for just a second then apply full throttle (you need to get the hang of exactly how long to keep it at 50% throttle)

and right before each upshift slightly let off the gas then stomp on it again, I can chirp 2nd doing it this way easily

it takes a while to find the perfect times/spots to do each of these moves but it really is the best way to launch.

I dont care if Im racing a stick car anymore I never have a problem beating them with this technique

and If we could get an ECU that doesnt retard timing with each gear change we would have no problems