Figure 1, at the beginning of the July we could reach up to 57Mpc by adding an offset in SR TX. More recently this had been less effective, and the maximum BNS range in the past week has rather been 54Mpc. In the mean time there has been at least one step of the Etalon set point, and also following the gap in duty cycle between July 12 and 19, the WI temperature has been higher than set by the etalon set point, and it has gradually decreased. The BNS range has also gradually decrased over that period, it is very hard to say whether one is the cause of the other, or just a coincidence.