In reply to GridNorth:
> A friend of mine had his rope retained but another member of the party got his rope through on a different gate on the same flight. It's a bit of a lottery.
Was stopped at gunpoint (or, at least, hands on pistols) at Singapore, with a rope in hand luggage. Turns out, they thought it was a bag of snakes.
I was still allowed onto the plane with it, though.