I say, bring your revs up just below 4K rpm's to launch.....and smoothly slip the clutch on takeoff, do not drop it! Feather through the wheel spin in first gear the best you can, then shift that bastard as hard/fast as you can into second and feather the wheel spin once again. Once you grab traction in the top of second you will be all set. The hardest part with these turbo 420A's, is getting through 1st and 2nd gear. Good luck and let us know your results!!!!