No injured cavers recorded.
On a trip to Dante's Descent, two ropes were used and two cavers ascended each. A pad protected an obvious abrasion point. When the ropes were hauled up one had a large hole in the sheath through which the core protruded. It had been noticed that this fray was occurring just below the pad. It is surmised the 'bouncing' during ascent caused the pad to move up and down with the 'bounce,' thus exposing the rope to the abrasion point. Much apparently unavoidable rockfall was also experienced.
Two thoughts: Some abrasion points are best handled with a hammer; that is, take a hammer and dull a sharp edge. Second, it is perhaps most efficient to set up a rhythmic 'bounce' as you ascend, but it is definitely a potentially dangerous thing to do. The 'bounce' can be damped if you think about it and break your rhythm.
During a trip in Dante's Descent, one rope was damaged due to abrasion against rock, potentially aggravated by the bouncing motion during ascent.