The Ranch Fairy test kit was inspired by the WILD man himself, Troy Fowler. This kit is specifically designed for those who want to play around with variability and shaft spine identification without breaking the bank.
Not all bows respond the same to mass and Front of Center (FOC) variation. Spine identification charts are accurate, however each bow responds differently on the impact of FPS reduction due to arrow weight changes. Without actually building and testing, some things are left unknown.. Until now.