A couple more locking notes for tonight:

• I adjusted SR3 pitch to match the oplev before we started using the heater, -1 pitch.  We are about halfway cooled off now, so this will need to be redone in the morning. 
• PRMI ASC worked with MICH only, but not PRCL.  
• Next locking attempt DRMI would not lock.  I added the mode hop offset back into the guardian, and was able to sit at AQUIRE_DRMI but not go to DRMI_LOCKED.  Stepping through that step one thing at a time the stopband PRM M3 ISCINF FM3 seems to destabilize the build ups badly at a frequency below 1Hz.  This is strange since that filter is a 230 Hz stopband, as shown in the first attachment, however it is quite repeatable.  
• PRCL OLG in DRMI 1F looks off.   I tried to check the popair phasing, but lost lock while engaging the 88Hz notches.  
• In PRMI checked both the PRCL OLG and the phasing.  The phasing of REFLAIR 9 puts PRCL in I in PRMI nicely.  
• Made a few more attempts to check phasing in DRMI, but wasn't able to turn on the notches without causing large oscillations.  I did check all three OLGs.  Attached is a series of MICH OLG measurements, I think the difference between these is slightly different alignments and SR3 heater is causing SR3 to drift, and I made some adjustments.  PRCL OLGS seem to also have an alignment dependence .