J. Kissel https://tinyurl.com/LIGOSUSActuatorTuning Table I've balanced the ITMY PUM/L2 coils using the demodulated optical lever method (LHO aLOGs 11392 and 9453). I'll characterize in more detail later, but here're the results: Former New % Difference UL +0.973282 +0.971803 +0.15196% LL -1.01098 -1.01146 -0.047479% UR -0.98898 -0.988465 0.052074% LR +1.02728 +1.02881 -0.14894% The encouraging news is that the balance hasn't changed much on the one QUAD suspension we didn't change. These new balance values have been accepted into the SDF system.