Keita and I looked at the PRM in both the old aligned position, p=2000 and y=50, and found that EQ stops looked good as expected based on Arnaud's spectra.  Then we drove the PRM to p=4135 and looked again for an EQ stop that was touching, and found none.  I looked at ISI trends, and the vertical sensor change from the locked for installation and rebalanced and refloated show that there was a tilt in the HAM ISI table and PRM saw something like 1800 counts change.  From this, I believe that PRM is not touching an EQ stop, and that the shift in alignment is due to the tilt of the HAM2 ISI table, when it was rebalanced and refloated after changing it's payload.

I left today with Keita and Sheila still possibly working on the IMC, the low beam in HAM3, and PRM alignment, so maybe this is all solved.  IF not, then it's time to have SUS come take a look at PRM to see how healthy it is, and to relieve the pitch bias.  Recall, it's aligned position has 2000 of pitch already, and we needed an additional 2000 to get REFL through to HAM1.