I picked up some hooks the other day and as I was new to the brand I stress tested a few of them. They seemed to preform nicely without cracking or breaking. However, they did flake off some type of coating. It was a bronze color and left the hook a more dull metal color. I dropped the hook in water and have not seen it develop an rust, so I'm wondering what this coating is and has anyone else seen this before? I tested an equivalent size older Mustad hook and it didn't flake. Do particular brands coat their hooks while others don't? Thanks for your input, FlyTieDad