After an hour of me perusing over the reaction chain for something else gross in it's mechanics, I came up empty handed. I went ahead and adjusted the PenRe AOSEMs correcting for the adjustments I made late last week while the Top Mass wire clamps was mis-seated. I centered up the AOSEMs nicely on the PEN flags, recovering much vertical range. I doubt something was rubbing there, but you know... Andres joined me a bit ago and also came up empty handed in a search for something out of place on R0. Pictures of R0 things to follow for the curious.