Yeap. That's the solution suggested by the LDS too. The suit (waterproof d7x nylontech) came with metal zipper when I bought it new and this is its' third winter season (about 80 dives so far in total). He estimated it should last another season or maybe two before it starts leaking noticeably and then I will replace it with a plastic one.Consider a plastic zipper next time. They are very good these days. In my experience they don't have this fraying issue for some reason. Different materials in the zipper interface i guess.