J. Kissel Before the holiday break, I'd discovered that we had somehow lost the settings improved the design of the L2/L3 (or PUM/TST) crossover -- see LHO aLOG 32540 for the bad news discovery, and LHO aLOG 28746 for the original design. I've now fixed the problem, and we have the new improved crossover again. This required several steps: (1) Turned on / switched over to the appropriate filters in the L2 and L3 DRIVEALIGN_L2L filter banks: Good Bad L2 L2L (FM6, FM7) (FM2, FM7 ,FM8) L3 L2L (FM4, FM5) (FM3, FM4) (2) Turned on / swtiched over to the appropriate filters in the corresponding replicas of those filter banks in the CAL-CS model, such that the calibration will be unaffected. (3) Changed the LOWNOISE_ESD_ETMY state of the ISC_LOCK guardian, such that it now forces the new configuration instead of the old. Committed to the userapps repository. (4) Accepted the changes in the H1SUSETMY and H1CALCS SDF systems. Hopefully we won't lose these settings again!