The daytime crew had noticed that there were some ETMX angular shifts happening without any control or intention.
I reseated and strain relieved the bias cable coming into the backplane of the coil driver and now it seems OK.
In the 4-hour-long second trend plot below, the era before 2300 is before reseating. Afterwards, we make a couple adjustments, but so far there has been no un-asked for alignment shifts.
AdS has been run on both arms and offsets saved. Its locked on green/red and the beat frequencies are low and the amplitudes high.
Sun May 18 23:53:37 2014: still OK...I declare it fixed.