J. Kissel
https://tinyurl.com/LIGOSUSActuatorTuning Table

I've balanced the BS M2 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 100*(former-new)/former
UL   +1.01       +1.00112      +0.87921%
LL   -0.985      -0.988984    -0.40447%
UR   -1.015      -1.01108     +0.38621%
LR   +0.99       +0.998824    -0.89131%
Only a small change. They've been accepted into the SDF system.
   
I was only able to grab an L drive transfer function with the new balance before the Mpc Train started choo-chooing (instead of the full frequency dependent suite of L, P and Y drive with former, no, and new balance). Anyways, the one TF lives here:
    /ligo/svncommon/SusSVN/sus/trunk/BSFM/H1/BS/SAGM2/Data/
        2018-09-06_1900_H1SUSBS_M2_L_WhiteNoise.xml
For the record, the balance and thees transfer functions were measured with the BS optical lever damping OFF.