Travis, Jason and I spent most of the day down at EY struggling with the mechanics of ETMy as the chains are not well set in yaw and are proving a pain in the a$$ to align.  In fact, we had to pull the reaction chain away from the main (via EQ stops) just to work on the main without reaction pushing on main.  After ~5 iterations of Top Stage blade tip alignment, we finally ended the day with the main chain hanging at some 500urad out.  Jason reports that this is roughly where we started this morning...

We also fought a differential pitch between the ERM and the PenRe above it - due to the loop.  We attempted to move the loop along the barrel a bit to see if that would help.  It didn't appear to, so that's when we opted to clamp it off away from the main anyways.