The phrase refers to a tool or method used by archers, specifically those aiming for high-level competitive success, to calculate and optimize Front of Center (FOC) on their arrows. FOC represents the percentage of an arrow’s total length that the balance point is forward of the arrow’s midpoint. For instance, if an arrow’s balance point is located 13% of its total length forward of the midpoint, it has a 13% FOC. This calculation is typically performed using online tools, spreadsheets, or specialized archery software.
Accurate FOC calculation is important for achieving optimal arrow flight and consistent accuracy, especially at longer distances encountered in competitive archery. A properly tuned FOC helps to stabilize the arrow quickly after release, minimizing wind drift and improving grouping. Historically, archers relied on trial and error to determine ideal FOC. Modern calculation tools, however, allow for a more precise and systematic approach, taking into account factors like arrow length, point weight, and fletching characteristics. This leads to improved performance and reduced variability.