Dont be scared to practice launches before you go out. A very quiet country road is good for 0-100 practice. The track will be different but if you have never done it before its good to get a feel on what rpm spins or bogs down. My car felt good on the street tarmak but at the drags i was getting massive tramp problems through worn lower control arm bushes and stuffed viscous lsd. When staged i hold the handbrake on dial revs and take up the clutch pedal slack, then engage it on the second last amber light releasing the handbrake at the same time(jap style).Hope you understand lol..