Despite the uneveness of the body on either side of the upper and lower bouts, I manage to level the guitar with the carrier's micro adjuster.
Applying the elastic cord before tightening the 16 holding screws
Flip the back around, but one of the side keep coming loose
due to unevenness on either of my sides! (uneven sanding of the back!)
Happy that the tool could even out my imperfect guitar!