Thanks to Aminna for finding this.

The Ga and Gb parameters in the MMS switch model refer to the
conductance of the off (low conductance) and on (high conductance)
states of each MSS channel, respectively.

To arrive at these values we took the device on and off conductances
(W_OFF and W_ON in AHaH source code) and divided by the number of MSS channels (N in source code). This
occurs on line 113 and 114 of MSSMemristor.java.

The Ga and Gb parameters in Table 3 are reporting the whole device on and off state
conductance (W_OFF and W_ON), not the MSS on and off states. Furthermore, the "a" and "b" subscripts are backward from our stated convention. This is a mistake on our part in constructing Table 3.

[Table 3] Ga-->[Source code] W_ON
[Table 3] Gb-->[Source code] W_OFF

[MSS Model] Ga=W_OFF/N
[MSS Model]Gb=W_ON/N

~Alex Nugent