Alexa, Stefan - With the y-arm o.k. (the remaining glitches were actually bleeding in from x-arm locking), we realigned the x-arm. - Note: we need to switch back to a better camera view for the x-arm transmitted light. The current one does not provide a lot of information because a) it is completely saturated and b) it is in a guoy phase that is not very sensitive to TMS alignment. - Once we had both arms aligned and locking fairly reliable, we looked at the DIFF electronics: - First we found 3 switches on the VCO and FDD that were left off. - Next we noticed that the DIFF beat note was only -32dBm - we verified the EPICS read-back with the scope. - So we hooked up the scope on ISCT1, but right then an earthquake struck and knocked out every ISI on site. Thus we went home.