I printed out my alignment targets on paper and taped the paper to the crumb tray.
The vectors in the GFUI do not consistently align with the picture captured by the lid camera. An interesting item of note. The vectors in the GFUI that are misaligned are always to the left of the targets captured by the lid camera. Considering the lid camera picture is a distortion corrected fish-eye photo, I would suspect the misalignment to be biased left, right, up, or down depending on the targets location relative to the center perfectly aligned target.
Here is the GFUI after running the program.
Two items of note:
1.) The misalignment between the vector elements and the picture captured by the lid camera remain the same. If you stack the two images in PS or GIMP and do a difference between layers, the only significant changes you see are the cuts in the paper.
2.) The cuts in the paper are all uniformly misaligned. Relative to the printed target, every cut is roughly .120" to the right and 20 degrees above horizontal. This can be seen more clearly in a cellphone photo I took of the paper taped to the bed.
In conclusion, it appears the algorithm being used to flatten out the fish eye photo taken by the lid camera is not creating an accurate representation of the material within the GFUI. This error is then compounded by the actual cuts being shifted right and up. The .006" difference between the paper’s actual surface and the minimum height of .010" may account for some of the errors, but I highly doubt it accounts for a significant portion of the errors, especially considering my experience attempting to cut on proof grade remanents.