I'm making some Purpleheart foreshafts. I noticed when I ripped it that the inside wasn't as purple as the outside. I was silently accusing the shop of staining it to make it look better. Two days later I noticed that the sawdust under my tablesaw is getting purpler(word?) and purpler. Am I imagining things or does Purpleheart turn more purple as it is exposed to air? If this is the case should I let the arrows sit for a few days before finishing?