I have observed, on what otherwise seem all but perfect records, a uniform pattern of tiny radial cracks on both sides.
My theory is that these are shrinkage cracks along flow lines and between flow zones from the pressing. If the puck of vinyl was not blended sufficiently or the record not "cooked" in the press long enough to completely melt adjacent zones it might crack this way as it cools.
PVC has a relatively high coefficient of expansion.
Further, perhaps these records are superficially in good condition because they where unlistenable or even returned as defective.
Oregon, are the "cuts" you describe on both sides of the record? I would take that a supporting this explanation.
Ken
My theory is that these are shrinkage cracks along flow lines and between flow zones from the pressing. If the puck of vinyl was not blended sufficiently or the record not "cooked" in the press long enough to completely melt adjacent zones it might crack this way as it cools.
PVC has a relatively high coefficient of expansion.
Further, perhaps these records are superficially in good condition because they where unlistenable or even returned as defective.
Oregon, are the "cuts" you describe on both sides of the record? I would take that a supporting this explanation.
Ken