Rope round your prop is like getting a puncture it might never happen but you still carry a spare? if you have an engine you need a rope cutter...weve picked up stuff...bits of nets line etc just floating around off spain more than once, its not always going to be attached to a pot...fishing line (if long enough) with hooks and floats can cause as much damage. There is a new cutter (in Y World this month quickutter? ) that has even cut ss wire so in most situations now you will not get trapped or have your drive system disabled. Its something Ive always planned for and have mask and knife always ready, just in case.