In reply to vberg:
I have damaged 2 ropes through crampon strikes. On both occasions, the point went right through the rope and stuck out the other side, needing a good waggle to get it out!
The first was with a pair of chisel style Stubais, back in 1990. The second and more recent with a vertical point, but in both instances, although the sheath showed little damage, the rope had a floppy bend at the point of impact. I just cut off at the damage, usually no more than 1.5 m.
Why retire a perfectly good 58.5m rope?