As mentioned here, the PMC transmission is currently lower than usual (and lower than during O2).  In preparation for the IO IMC bypass and CS alignment to take place later this week, I tweaked the beam alignment into the PMC to try to recover as much power as possible.  Unfortunately, I wasn't able to recover much power; with the ISS ON and diffracting ~3%, the PMC is transmitting 48.8 W, versus the 48.7 W it was transmitting before I started.  The likely reason for this is bad mode matching into the PMC due to the recent NPRO swap (which could change the mode content of the PSL enough to alter the required PMC mode matching scheme).  We are likely to stay in this configuration until the HPO is decommissioned and the 70W amplifier installed (currently scheduled for late January/early February 2018), unless there is an overwhelming need to improve the PMC transmitted power.