As it has been already seen the range is strongly correlated with the B1s2 PD1 blended signal. Using the scan on the DIFFp TX dof performed yesterday it is visible that the optimal working point for the ITF and the OMC alignment are different, see Figure 1. The optimal working point for the DIFFp TX is the one which minimizes the B1p DC, wp = 0, while the one which gives the highest BNS range (which minimizes the B1s2 blended signal) is 0.1.
This could be due to a misalignment of the OMCs with respect to the ITF, to be checked.