I recently purchased a 70m 9.8mm Edelrid rope. When it was packaged it had 3 tight plastic bands holding it in a coil. When I cut the bands off I noticed that they left small indentations on the rope where the bands were. It has been about 4 days and the indentations seem maybe slightly smaller, but mostly unchanged. Has anyone else experienced this before? Should I be worried about the integrity of the core?