TPG policy question on dinged corners

[jchcollins]

Does anyone know if PSA, SGC or BVG have particular policies on how they handle moderate to badly dinged corners before slabbing? I have a recent pickup that is lower graded, PSA 2.5 - where they just left a flipped up corner in it's original state and slabbed it that way when it likely could have been turned down / smoothed out. (Don't get started on the "conservation" tangent...not intending to go there at all...)

I'm not tremendously bothered by it either way because it's only a 2.5 - but was just curious if any of the TPG's have stated policies around this. Do they not touch the corners at all if it came out of the case it was sent to PSA in that way?

Thanks.