Lots of stuff going on in the attached ITMY spectra of FASTIMONs at all 3 stages (M0, L1, L2) taken just now with the IFO in an 11+ hour lock.  Tried looking for old vs new differences to possibly account for the extra "swinging" misbehavior of ITMy as observed just this weekend (alogs SUN 31247, SAT 31230 31225, Fri 31226, and Kissel's coil check last Wed 31136).  I checked a few locked stretches from earlier last week compared to now - indeed there is a noisier peak/shelf from 6.06Hz to 7.6Hz on L2 in the current lock (all 4 channels LL, LR, UL, LR).  I can't correlate any activity in the alog to why ITMy, but maybe I missed something subtle that someone did.