Note: If making this recipe by hand, whisk to combine the dry ingredients in a large bowl, and mix in the butter with a hand mixer. Proceed with the recipe as instructed.
If possible, weigh the flour instead of measuring it.
The dough should be somewhat sticky as you can see in my process shots and notes above. If it is unworkably sticky, add a small amount of flour, just enough to make it workable, but know that any flour you add will make the scones denser.