I just finished assembling my new EX4 (2nd gen) and ran it at 600F for about 40 minutes for its initial burn-in. Afterward, my heat baffle looked like the photo below. I recalled it having an oily texture when assembling. Some of the reddish park flaked off, but the rest seems rather well adhered. Is this typical? Anyone have any idea what happened or if this is anything I should be concerned about? Thanks in advance.