Flexure
Slider 2 (mirror, direct imaging)
X=9 px pk-pk, y=14 px pk-pk
Rotation: 0.5 px pk-pk center to edge
Slider 3 (grating)
X=20 px pk-pk, y=13 px pk-pk
Rotation: 1.3 px pk-pk  center to edge
Slider 4 (grating)
X=16 px pk-pk, y=9 px pk-pk
Rotation: 0.7 px pk-pk center to edge