Here is a recent DARM spectrum, taken with 24.6 Watts of power into the IMC, with the new low noise ESD driver with the low pass on.  

The peaks around 300 Hz which are worse than in the reference are coherent with the PSL periscope, we might be able to adjust IMC WFS offsets to improve this.  There is also coherence with SRCL, there was no feedforward of MICH or SRCL durring this time.  

This lock stretch did not appear on the summary page, this must have to do with the change on the sumary page from H1:DMT-SNSW_EFFECTIVE_RANGE to H1:DMT-SNSH_EFFECTIVE_RANGE.  I'm not sure when the SNSH is calculated, but we should note that some good lock stretches are now missing from the summary pages.