it seems the beam at neoVAN output continue to drift in horizontal direction, see figure1_plots 5&7
little drift in the vertical direction (figure1_plot 6&8)
This is confirmed by the camera installed at neoVAN output (log entry 41598),
The camera installed on the seeder (before the neoVAN input) states also an horizontal drift (figure1_plots 1&3)
This trend is a constant drift with no sign of asymptotic convergence since ~ the seeder waist size adjustment (4/04/18), see figure2: the line dark-brown (refered to PSL_AMPL_QD_FF_H)