I've been working on trying to improve BSC performance by adding elliptical filters to the CPS part of different blend filters, see logs 17702 and 17488. At ETMX I was getting good improvements in Z (first plot, black(sts) and grey (gs13) is 2 nights ago with the "old" blends, green(sts) and red(gs13) are for my new blends) so I was trying to clean up the extra filters I had (which prevent the seismic blend switching scripts from working nicely) and start exporting what I had to other chambers. This involved cutting some elements out of some existing blends and a lot of copy/paste. For example, on St1, the 90 mhz Z blend, I cut out a couple of pole and zero pairs that were very close to each other (almost cancelling each other out) and adding my ellipse. The result is shown in the second plot, blue is the stock, red is the modded version. There's a third, barely visible green trace, which is what I cut the original blend down to before adding my elliptical. I also modified a version of the 01_28 blend  from the HAMs, (third plot, blue is stock, red modded) to use in Z but ETMY keeps ringing up with this blend, so maybe I've compromised the complementarity too much. I've tried my modified blends on ETMX and ITMY and it works there. I'll get all of the chambers in a consistent configuration by tomorrow afternoon, but as of now ETMX and ITMY are in slightly different configurations from ETMY and ITMX.