So, I ordered a yellow Fiji leather from an online source. Got it a couple days ago, and it is more green than yellow, waxy and no polyps. The polyps have started to come out, and I am not worried about the waxiness, but has anyone had these change color? Are these sensitive to iron etc and change? or am I stuck with a green leather? I've had plenty of sps color up with growth and change from when I originally purchased, but have little experience with leathers.