 
By placing the TORQUE SPHERE just above the inner equator of the TORPEX Core, we found that not only did it create the lowest RG symmetrical Roto Grip part ever, but it also created a higher differential which translates to more overall motion and less deflection through the pins.
Core Type
              Symmetric
          16 pounds
RG
              2.470
          Diff
              0.050
          15 pounds
RG
              2.470
          Diff
              0.052
          14 pounds
RG
              2.540
          Diff
              0.051
          13 pounds
RG
              2.590
          Diff
              0.045
          12 pounds
RG
              2.650
          Diff
              0.035