FFB wrote:
I'm not losing my objectivity. I just happen to know what is involved in the kind of pressing of comics that most people care about - the kind that will take a VF book and turn it into a NM book.
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I do not know whether most people are concerned with high grade books turning into even higher grade books by pressing, or if their concern is with any grade book being pressed with the hope of achieving a higher grade.
As your focus is solely on paper you see as being fresh, strong, and flexible enough to withstand a pressing, and localizing the process to a single small bend or NCB while staying away from the spine, then you can leave this discussion with the knowledge that pressing, in your case, will most likely leave no significant damage.
I on the other hand have said that removing a spine roll from a comic that could potentially have Off-White or Cream pages concerns me far more. My collection is mostly composed of 1940's comics where NMs are few and far between. I would like to know the ramifications to my collection if someone were to press a mid-grade comic that I end up purchasing. Must I be wary of any FN+ comic advertised as "Lays Flat"?
As Ze-man and others have noted the spine is the weak point in the comic and may show a large variance in degradation over its entire length. The paper has been bent in place for many decades and therefore has lost much of its flexibility relative to the center of the book. If splits were to appear in central wraps following the pressing process, how would I know? If Creamy paper that has been folded for over fifty years was flattened will it lose a significant portion of its strength? I'd like to know.
In my opinion, any testing must include the use of a fresh piece of paper being folded, then artificially aged while still folded, and finally pressing it so that no fold whatsoever is apparent. Once this is done we can finally age the sample to see what long term damage, if any, has occured.