Sheila, Oli, Elenna

Today we made a change in the BBSS model (ECR E2600297) to create a matrix in the BBSS OLDAMP on M2 and M3 that allows switching between the BBSS oplev and the BBSS M3 wits as the sensor. Sheila determined that the M3 wits have better SNR than the oplev, and may also have less cross coupling between pitch and yaw.

Right now we send oplev damp feedback to M2, but we have the infrastructure to damp on M3.

Sheila estimates that the gain shoiuld be reduced by about a factor of 3 if the M3 wits are used as a sensor instead of the oplevs.