After some digging for lost functions, I was able to run and collect data for the matlab long ISI transfer functions. Attached plots are the actuator to gs-13s most recent tf (first plot) and the previous 2014 in air HEPI locked tf. I don't see any evidence at this point that the baffles on HAM2 have affected the plant much. There are a couple little wobbles at 17 and 24 hz, but I think those are both from HEPI locked, as those feature are present in both tfs, and are huge in the CPS measurements (not pictured). The poor high frequency coherence is probably due to purge air, I'll probably want to do another tf during pump down.