We were able to lock the X arm stably (for several minutes with no offloading) the first time we "locked" it.  At that time our alingment was far off, and we weren't really locking a real cavity mode (alog 9127).  Right now we cannot lock for more than about 30 seconds, more often the locks last only a second or 2.  While it seems most likely the lock was stable then because of our terrible alingment, I just wanted to check that we haven't had a change in the motion of the optics since that time.  Attached are three screenshots from Jan 7th (the night after that lock, for which data is available) and last night.  As expected, the motion is either the same or reduced since then by the work that SEI has been doing. 

Livingston people report that they are seeing about 1 fringe per second with the green, that is much less motion than we have  (here it is about 10 fringes per second).  But the apparent stability from a week ago was not due to less motion, it must be some optical difference due to the bad alingment we had then.