Caveat: new to this forum & thread. I have a 3.0 AF15 with slight amateur color touch (C-1). It's a really solid clean copy with only slight chipping - looks closer to a 3.5/4.0. Question: what are your thoughts on color touch vs. other restoration? As a kid that regularly & very carefully filled in some blacks with pen, I don't really have much of an issue with it. Doesn't seem to really affect the integrity of the book, imo. Certainly not like pieces added; cleaned; trimmed; etc.. I'm curious why an inconspicuous color touch would designate a resto grade, while a person's messy name scrawled on the cover would give it a Uni grade. I understand the rationale, one's an attempt at restoring while the other's not - but an imperceptible color touch is much less egregious than a smudgy penned name. And yet, just getting that purple label vs. blue dramatically impacts the value. I'm curious if serious collectors like yourselves evaluate the value of (3.0) slight color touch vs. more a Uni copy that's in much worse shape (say 2.0), sans color touch. Thanks in advance.