| For the player seeking more spin and control, Tecnifibre offers Ruff Code.. In this thinner 17 gauge, Ruff Code plays livelier with more ball speed off the stringbed and a softer feel at impact. Perfect for big hitting, power players, Ruff Code is a shaped co-polyester string providing increased durability and spin. According to Tecnifibre, the bi-phase construction process used for Ruff Code offers 10% better tension maintenance. This spin-friendly co-poly tested very well with our TW playtesters. |