Can't get any better than this...to 1/10 degree at least!
Image 3 is a little blurry, but yes the bubble level is indeed off plumb. Doesn't matter that the fuse isn't absolutely level, because the the electronic level was zeroed at the tail, so what matters is the difference in the two e-level readings. 0 - 0 = 0. Close enuff for this here aero-plane.
