My bad, I thought you wanted to ride a wheelie. If your having trouble keeping it down on a launch, you definately need a different spring. If your big enough, you can always shift your weight forward and throw yourself over the bars when you launch like I do. I have the pink spring and elka's and it will still wheelie if you just sit on it and hammer the throttle. You need to practice and experiment as much as possible with positioning, throttle input, etc... Practice makes perfect.