Bricasti M1 owners- a question-

I’ve got and love my M1 DAC. I run it balanced, and I notice that the output level from the balanced outputs can be tweaked by moving a jumper of each analog board. You can either then do nothing, in which case you get an extra 2.5 dB output, or you can juice it go get about an extra 9.5 dB output ( you can decrease it too)

Anyone ever explore this feature?