Active control was left off to avoid perturbating the investigation of a large unexplained offset whitnessed on MC1.

I turned the active control back on this morning, on both HAM2 and HAM3 ISI to help locking the IMC, and assess performance. Active control is the same as it was for the IMC test:

• Damping loops
• Ryan DeRosa's Blend Filters
• ISOlation loops Level 2 (UGF ~25Hz)

Recent performance spectra can be found here.