Yuta is going to bring this up at the 40m meeting so it can be argued over, but we (I) want a permanent IR beat setup at the PSL table. This isn't a novel idea or anything, I just think it will save us time if we can quickly re-acquire the beat signal, so I'm bringing it up again. Eventually, as Koji suggested to me, we can make the IR beat part of a servo, so that the green beat is always within the bandwidth of the green beat PD. But for Phase 1, it's enough to just see the Ir beat on a ~1GHz PD. Suresh tells me most of the bits and pieces are around, we just have to gather them all in one place.