J. Kissel, for F. Matichard,

As mentioned in LHO aLOG 10397, Fabrice has installed a clean set of three blend filters on ETMX, ITMX, and BS. (I loaded ITMX filters this morning). Here're plots of the new blend filters for ST1 BSC-ISIs. 
"TCrappy" is exactly the same -- a version virtually identical to Ryan DeRosa's very-low-blend filters, 
"Start" are an improved "750mHz" that *actually* rolls off at high-frequency and does not include the T240s. 
"TStart" has the same displacement sensor / inertial sensor 750mHz crossover, but includes the T240s to get rid of L4C noise at low frequency.

The plan is to use "TCrappy" when possible, and "TStart" under high wind conditions.

7:00 pm PT EDIT:
I've now added the filters for both stages in all degrees of freedom for a BSC-ISI. I've done this using a newly committed version of
/ligo/svncommon/SeiSVN/seismic/Common/MatlabTools/plot_current_blends.m
Use it. All the time. When ever you install a new set of blends.