how do you launch your car at the track? The thing i am really wondering about is the guys that drive fwd car?

I have had a rwd auto whered i just break torque it and go when the light chnged( im not sure how efective this was because thios was back in my street racng days). Now my awd where i just keep reving it between 5000 and 5500rpm and slip the clutch as fast as i can( not just side steping it) which produse 1.7 60s on street tires(god i love awd). Now how do yuo guys launch