After getting the PSL back, Keita mentioned to me that the alignment into the IMC was off and that he would like
me to bring the pre-modecleaner body temperature back to where it was before the power outage, namely 304.5 K
(as indicated on the MEDM pre-modecleaner screen).  It was sitting at 304 K when Keita ask me.  To do this I
disabled the temperature loop and increased the heater offset.  I had increased the heater offset as high as
0.96.  Then the temperature reached 304.5 K, I locked the pre-modecleaner, reduced the heater offset back to
its previous value of 0.72 and re-engaged the temperature loop.

On a different matter, it might be that the reference level at the ~middle left hand side of the MEDM screen
may need some adjustment/tweaking.  For a long time, this was set to 1.35 (on the slider).  However at times
the pre-modecleaner had difficulty locking and that was because the value between the two less than signs was
larger than the upper limit.  So the front end model thinks the pre-modecleaner is locked even though it's
obviously not.  Reducing the reference level down to 1.2 or 1.1 solves the locking problem, however Jason and
I were informed that the pre-modecleaner locked on a non-TEM00 mode when it was set to 1.10.