I am seeking clarification regarding staple rust when grading modules. My understanding from the Acaeum grading convention guidance is that a module that would otherwise rate at
NM can be no higher than
VG if it has staples that are completely rusted even if it has no other notable flaws. Is this correct? I know a small amount of rust is ok, 25 percent at F and 10 percent at most for
VF. It seems many people give the grade as it would be without staple rust and just note the rust. I want to grade my items properly. So please advise. Thanks!