As has been discussed in this forum and elsewhere, most iPad/iPhone screen scratches are actually in the oleophobic coating layer, not the glass itself.
So there was no actual scratch.
So, I figured, what if I just remove the oleophobic layer? Then all I'll have left is nice, smooth, hard, scratch-resistant glass.
It already was scratch-resistant. The oleophobic coating prevented the screen from being scratched.
However, without breathing on the glass, you absolutely can't visually tell where the coating ends -- the bare glass is exactly as shiny as the coated glass.
So the coating is invisible, completely undetectable and protects your screen from scratches. . . and you removed it?
I gotta tell you, I was SHOCKED as to how nicely this turned out. There are absolutely no scratches in the glass (even under very close inspection using fluorescent and LED spotlights)
So there was no actual scratch.