(specifically a Boston butt in this case). I've always applied a rub 2-4 hours out, as I've always read/heard that you need to be careful not to apply your rub too early, as the salt in the rub can dry out the meat. However, lately I'm seeing that a good number of people are applying their rubs the night before. With that being said, which method is correct? Does it depend on the meat itself? I could see how you could get away with applying a rub to a Boston butt the night before, but not to ribs (for example) as the ribs would dry out more quickly than a butt would. Thoughts?