There are a few things that still needed worktonight with the fast shutter, and will need more work:

• It trips the HAM6 ISI often. According to the detchar sumary pages I have tripped the ISI 18 times in the 3 hours I've been locking tonight (it trips once when the shutter triggers and often a second time while reisolating)
• I lowered H1:SYS-MOTION_C_SHUTTER_G_TRIGGER_LOW from 0.014 to 0.1 because the power was frequenctly dropping below this in DRMI
• I commented out two of the checks on teh AS WFS DC power that Stefan added, they are both checks that there is light on the diodes after the shutter test has finished and the shutter is reopened.  These test were failing because the DC centering loops are turned off for the shutter test.  Since the beckhoff code already check that there is light on AS_C after the shutter is open again, I don't see any safety reason we need to check that power is restored on the WFS. 
• I also moved the check that there is no light on the WFS once the shutter is triggered so that it is only done once in the main state.  As originally written it made sure that there was no light on the diodes for 8.5 seconds after the test started, but this failed because the shutter was reopened faster than the guardian expected.  It seems like checking once should be good enough.
• I changed the threshold on the LOCKLOSS_SHUTTER_CHECK guardians so that it should request a check of the shutter each time we lose lock from an on resonance interferometer with 2 or more Watts in the arms.  We may need to adjust this further, but for now I have added a check in down so that it will not attempt to relock until someone manually changes the state of the LOCKLOSS_SHUTTER_CHECK guardian.  The hope is that this will serve as a reminder for everyone to do the check until we have an automated check in place. 
• There were a few bugs in the way the shutter testing was handled in ISC_LOCK, which I think I have fixed all of now. 

A few other things:

The ISS diffracted power has been at around 4% since August 2nd (the first day of the vent). Before the vent it was around 16%, but DIAG_MAIN thinks the diffracted power should be between 1 and 6%.  I moved it up to about 14%, so DIAG main is complaining. 

There is a problem with switching DRMI to POP signals in full lock.  We can stay locked stably for ~10 minutes at ANALOG CARM, but lose it shortly after transitioning DRMI to POP signals each time. Before transitioning off the 3F signals, the MICH UGF is about 5 Hz.  I manually changed the digital gain from 1.4 to 3.6 to restore the loop to a 10 Hz ugf, although I don't know why the gain would be low.  The PRCL and SRCL UGFs were normal.  After adjusting the MICH UGF I was able to transition to POP, but did this in the middle of an earthquake.  I don't know if the lockloss about a minute latter was due to the DRMI problem or due to the earthquake.