Motion Control Core (MC2). This advanced core design features “Vertical Dual Density” Technology, a weight block in which the vertical differential of specific gravity is .40 creating built in core mass bias.
The MB/Intermediate differential of 0.01 listed is just an estimate. I wasn't able to find the actual value anywhere.
Core Type
Asymmetric
16 pounds
15 pounds
RG
2.490
Diff
0.055
MB Diff
0.010