Friday, I said I was trying some new blends on ITMY. It looks like they are probably an improvement over the 90 mhz blends we are currently using. Attached plot shows op-lev and ground spectra, but the real test will be when we have arm cavities again. Red is pitch, green is yaw, black is gnd Y and pink is gnd Z. Dashed lines are the new blends, solid are the old blends. I also looked at the ISI local sensors, they largely agree, but I don't really want to post that many plots. Currently these blends are installed on ITMY and the BS, I have a script ready to install them on all chambers when people agree that we should make the change.