We had line cutters on our catamaran while running the ICW for about a year. One of the cutters hit something that forced the cutters to bend on one of the props (cable, metal rod??? who knows?).
We had to run on one engine till we were able to haul out.
I removed them and never looked back. We traveled the ICW for several more years and did a 3 month cruise in Maine. Lots and lots of lobster pots in Maine. The clutter the main channels, moring fields....everywhere! We were contantly moving the boat and covered all of the Maine coast. I only snagged a line once on one of my rudders and it came off easily. You just have to very darn careful and be concentrating hard on where you are going.
I heard stories about some lobsterman using metal cables but I really do not know.
Just my very humble opinion, but I think line cutters and what ever other interations install a false sense of confidence!
Maine - Lots of fog, rocks and lobster pots. You have to be on your game 120% of the time!
It is worth every minut of it. One of the best cruising experiences we ever had!!!!
Jon