I brought brand new Zildjian A Custom cymbal set including a 14" hihats, 16 and 18" crash cymbals, and a 20" ride. I like the sound.
However the cymbals shipped with these odd stains on them. I attached photos below. What is this stain, and what does it say about the cymbal condition? These are supposed to be brand new. Are these simple birth marks, or perhaps it means the cymbals were not kept in good conditions before shipping to me? Is it possible to clean it?