the best thing about them is how lightweight they are, but they look heavy and substantial. but in the learning years, the "training wheels" come in the form of daddy's hand on the back of the screwdriver keeping it going straight. people answer posts here when they feel they have something helpful to say. the below guide will help you navigate the new system. the week before a race, your runs should make you feel confident--not sore. lord, i bless them now and i thank you for their steady, steady hand, steady life, steady plotting and plowing. 