I repeated the CP fringe wrapping tests we have done a couple of times before. 

For both CPs I used an excitation of 600 counts at 0.1 Hz into R0 DAMP L, which is similar to what was done in 30979 and 33521

have ended up with a position simliar to what Robert found based on the camera image by trying to minimize the fringe wrapping I see in DARM from the excitation.  On the PRM camera there are clearly two beams from CPY, they are not completely gone in this alignment (I did't find an alignment where both beams are gone) The 2nd and 3rd attachments are before and after pictures of the PRM camera.  I am having trouble opening the SRM camera.