Grind Consistency for Different Beans

I was thinking about grinding coffee this morning.. I understand that for drip coffee, the ground coffee should have a consistency similar to that of sand. But how much does this vary with different coffees with different densities and other characteristics? Should all arabica be ground to the same consistency? Should strictly high grown/hard bean (SHB) be ground finer than high grown/hard bean (HB)? Is there some rule of thumb?

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