So....I had this guys skull looking pretty good after about 4 weeks in the heated dawn bucket, except for a couple dark looking spots down by the nose, just above the eyes, and the horizontal bones behind the eyes. Probably would have been ok, but I wanted it better. I thought maybe the "brown" spots down by the nose was blood so I did a 4 hour soak in Iron Out. Rinsed it good...no change. Back into a fresh bucket of dawn and I added a cup or so of ammonia. After a couple days I checked it and it was BLUE! Crap! Still had the dark spots too. I left it in the soak for almost 2 weeks. Slight improvement to the dark spots so I pulled it and let it dry for a couple days. Then I put it back in the peroxide one last time. 24 hours later this is what I found!!!! Any suggestions?