Deuce - I just now pulled the Ronin in its freezer bag out of the 1791, and felt down inside the holster.
Sure enough, got some red.
I took an old but clean dishcloth, rinsed in hot water wrung it out good and let it cool a bit.
worked it into the trigger guard slot and it came out really red. Ran it down the rest of the inside like you might clean out the mag well of a 1911 frame with an oily rag. See pic.
NOT a wet cloth- just damp.
I think some of the reason its that way is from being sealed in a plastic wrapper a long time, on a hot tranport truck, etc etc.
but the stuff seems to come out.