Plots are found in SeiSVN: HEPI/H1/Common/2015-03-18_H1HPI_PumpControllerNoise.xml

The reference traces are from Monday 17 March 0900utc before the Tuesday Maintenance Accumulator Charging.  The current traces are 24 hours later after the charging effort (BSC2SupplyNorth not done.)

My assessment is this assessment is a bit too noisy and this didn't make much difference.  All the controller improvements have made things pretty good already.  The largest coherence was in the BS RZ which shows some broadband signal between 10 and 100mhz and that is reduced a good bit.  However, there are spikes of greater coherences in other dofs.  I would never say this is not worth doing.  Jeff may have some suggestions to better assess this is worhwhile.

I added the plots now.