IMC WFSA I and Q segment gains (H1:IMC-WFS_A_I1_GAIN etc.) are [1, 0.25, 1, 4] for segment [1, 2, 3, 4].

I injected some small excitation into MC2 MCL at 20Hz and saw that segment 2 is much smaller than seg1 and 3 while segment 4 is much larger. WFSA phases are good, gains are not, and WFSB looks good for both.

These gains are supposedly set by injecting into MC board and measuring the length response in WFS segments such that the output becomes equal to each other, as explained by this alog from June 2013. It seems like these numbers were set to some seemingly crazy values in June 2013, and then to other seemingly crazy but different values in August 2014, and stayed there since then.

WFSB gains were set to yet another funny things in June 2013 but at least they were set to [1 1 1 1] last August.