| If your bike is on standard gearing you have to murder the clutch for a good launch.
In clubby racing the start is absolutely vital. Like Felix says, practice makes perfect, its far easier to overtake from the start in a short race than do or die stuff in the corners.
You can sometimes feel by the seat of the pants when you have made the perfect launch, even with no other bikes around, front wheel just hovering over the ground.
Too much sky is not good!!
Ray. | 
Threaded Mode