[Sudarshan, Gabriele]

We tried to better dump the beams on IOT2R with a piece of black glass (and dumping the glass reflections with the razor blades).

The PRM was aligned, but to avoid disturbing too much the locking activities, we left the two arms and the BS aligned as well. The PRC flashes made very difficult to get any conclusive result. We think that the 18 Hz bump was not there anymore, but at the end we were not completely sure, since there was too much more noise due to the flashes. We'll try again tomorrow morning, with only PRM aligned.

For the moment we put back the upper mirror and dumped the beams with two razor blade dumps just before the two bottom mirrors. The situation is back as before. 

In the meanwhile, we noticed that the periscope was not propely clamped to the table, and we accidentaly moved it. This shouldn't be important. Now we clamped it securely.