The core is the exact same as the urethane model; however, the numbers are different due to the density of the reactive shell versus the urethane; this raises the differential and creates more flare, producing a stronger and more angular backend motion.
Core Type
Symmetric
16 pounds
RG
2.541
Diff
0.035
15 pounds
RG
2.586
Diff
0.027
14 pounds
RG
2.605
Diff
0.026
13 pounds
RG
2.598
Diff
0.025
12 pounds
RG
2.592
Diff
0.031