Robert and I tried using Stefan's PR2 move and PR3 move states while Robert had a shaker on near HAM2.  We ddin't suceed in reducing the noise at the injection frequency, but we did find some POP offsets that gave us better recycling gain:

We got a recycling gain of 33 (35 according to the transmission QPDs) with POP A at -0.24 for pit, and -0.26 for yaw.  This didn't have much of an impact on the noise once I reran a2L.  

For now I'm leaving the offsets at the values we have been using (0 for Pit, 0.44 for yaw offset) because that is the position where we can power up without a braodband lump from 200Hz -1kHz.  With the higher recycling gain we didn't get a lump, but we did start to have coherence with DBB QPD1Y.