Since we didn't see any benefoit from reverting to May TCS setting, I dialed back the November settings, namely:

H1:TCS-ITMX_CO2_LASERPOWER_POWER_REQUEST => 0.3
H1:TCS-ITMY_CO2_LASERPOWER_POWER_REQUEST => 0.0
H1:TCS-ITMX_RH_SETUPPERPOWER => 0.25
H1:TCS-ITMX_RH_SETLOWERPOWER => 0.25
H1:TCS-ETMX_RH_SETUPPERPOWER => 0.75
H1:TCS-ETMX_RH_SETLOWERPOWER => 0.75
H1:TCS-ITMY_RH_SETUPPERPOWER => 0.25
H1:TCS-ITMY_RH_SETLOWERPOWER => 0.25
H1:TCS-ETMY_RH_SETUPPERPOWER => 0.75
H1:TCS-ETMY_RH_SETLOWERPOWER => 0.75
H1:TCS-ITMX_CO2_LASERPOWER_COMMAND => 2
H1:TCS-ITMY_CO2_LASERPOWER_COMMAND => 2
 

This happened at at Nov 07 2016 01:11:00 UTC