Atlas/Craftsman Lathe Oiling for Dummies

I should clarify a little. All the "correct" oiling tips I've seen just acme to a point, BUT they had small slots cut in the tip 180 degrees apart, to allow oil to flow out or the tip and onto the ball. Does that make sense?
It certainly does. I guess with the ball plugging the hole in the tip, the oil's gotta get out somehow, right?