Operators, if the IFO is having trouble tonight, particularly due to PI modes (you could check a spectrum of H1:OMC-PI_DCPD_64KHZ_AHF_DQ versus the beginning of the lock), you can revert the PSL power back to 35W. 

I copy here the instructions that Sheila left in alog 49680, since they are the same:  "We are going to leave the input power request set to 37W, if there are any problems with this it can be undone by going to userapps/h1/guardian/lscparams.py and changing NLN power to 35 on line 17 and hit load on ISC_LOCK, and on LASER_POWER."