I've had my Stiletto for about a year now and it's been on around 40 dives. When I pulled it out to get ready for my most recent dive trip, I realized that it probably didn't get the best rinse before getting put away at the end of last summer. There was a white crust on the inside of some of the grommet holes. Giving it what I hope was a more thorough post-trip rinse today, I noticed that the black finish seems to be coming off of those grommets. Is this a normal thing that happens sometimes or did I just get duds?