The Soul Medium RG symmetrical core features a multi-sided core system. This core design creates an optimum medium RG match up for low friction coverstock.
Core Type
              Symmetric
          16 pounds
RG
              2.530
          Diff
              0.041
          15 pounds
RG
              2.542
          Diff
              0.041
          14 pounds
RG
              2.561
          Diff
              0.041
          13 pounds
RG
              2.574
          Diff
              0.040
          12 pounds
RG
              2.597
          Diff
              0.040