J. Kissel FRS Ticket 9683 Checking in on the top-mass health of H1 SUS ITMY after the corner station volume has passed below 1e-5 Torr, I've gathered an high frequency, amplitude spectral density of the Main (M0) and Reaction (R0) chain top mass OSEMs. All sensors show a flat noise floor consistent with the expected self noise of the OSEM (~5e-11 / m.Hz^{-1/2} above 10 Hz) and no longer show any significant comb-like features. As such, I recommend we close out the above cited FRS Ticket.