Record the contact pattern
Photograph the roll direction and note where the face touches the next layer. Use the same light angle on the flat control and the rolled specimen.
Check recovery on a panel
Mount both cuttings on the same shape after the agreed recovery period. Persistent lines that only appear on the rolled piece should trigger another packing trial.
Mingpin buying note
ACT treats physical properties by fabric construction.
The comparison isolates a practical packaging question without claiming a laboratory durability grade.
Ask for the exact packing setup and retain the flat control.