Extra turns on the drum: Absolutely!
I've only seen them burst from chafe, and then they burst like a gunshot. That nasty little
line in the inconvenient place simply needs to be checked frequently, led carefully (to prevent chafe) and chosen well. Remember that some high-tech
lines can saw through steel without chafing much--but they also will snap their own fibers if they are wound on a too tight a radius, typically something like 6x the
line thickness may be the minimum they can be rolled into.
I would say to use steel cable with a fabric outer sleeve--but I also believe in never having
lines that my knife can't part. Never know what they're going to get wrapped around. Or who.