standard logroll fine-tuning:

L3 SB R, Rot R:

right side exposed,

lumbar BB

engage pelvic de-rotation

thrust in de-side-bending to the left



L3 SB L, Rot R:

lumbar FB

setup de-sidebending to the right

thrust is a derotation thrust tableward (rotates segment to the left)



problem:

ceilingward SIJ is locked by ceilingward side-shift