I didn't come here to argue. I came to post my opinion.
While Bungu Box ink is made by Sailor, it's availability isn't on anywhere near the same scale as Sailor inks so it's not really very like an ink produced by a major manufacturer.
Parker Penman Ruby hasn't been in current production by a major manufacturer for over 20 years so can be discounted based on availability. I've personally seen several examples over my years of inks and fountain pens and although it's quite variable because it's such an old ink, I never saw one darker than Fred's swatch of Syrah.
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