There was some problem with the high frequency photon calibration lines not lining up with DARM, so I remeasured PCAL to DARM and the DARM OLG and measured and fit the DARM plant.
The DARM plant fit was:
Optical Gain = 3.26e+06 cts/m
DARM pole    = 423.61 Hz
Delay        = 4.45e-05 s
Spring Freq  = 3.67 Hz
Spring Q     = 14.45


I updated the front end calibration filters according to this fit.  The high frequency lines seem better now.  

Then Georgia and I tested the calibration with a BB pcal injection.  There was a large phase discrepancy at low frequency, so we flipped the L1 actuation gain in the front end calibration, this seemed to help us.

We then tuned the actuation stages to get a decent front-end calibration.  We are good in the bucket to 6% with wiggles due to slightly improperly compensated actuation phase.  The reported range fell from 100 Mpc to 95 Mpc due to the changes.