You having 1 piece out of spec doesn't mean the chart is wrong lol. It means you have wood. An all-natural product with variation in feel, color, weight, hardness, etc...
That's not even logical to think. Oh, well I have a piece that's really hard so that charts wrong. Lol. It's wayyyy more likely that you have a piece that is just harder than normal. Because it's a natural product with variations in how it feels, how much it weighs, and how hard it is.
Perhaps you didn't actually read my post. Perhaps you didn't understand that I Said what you just said about variation within species. Perhaps you don't understand that a chart can be a good general guideline and yet not be "accurate". Perhaps you just don't understand English.