Jade Cameron - Pro Volleyball Performance Specialist on Instagram: "My Spike Timing System Within my research the best spikers literally contact at their highest point in their vertical jump with some being 1-8% over (meaning they contact later in their jump). This is what I call Time to Contact (TTC). In order to understand how well they timed the ball compared to their highest point, we get their Flight Time (ToF). Their peak height is the half of their flight time. So we divide it by 2. From