Does Mirror Lock-Up (MLU) Help Macro Shots?

Does Mirror Lock-Up (MLU) Help Macro Shots?: "First, for those who might not be familiar with the term, mirror lock-up (MLU) is a function on many SLR cameras which helps reduce vibration inside the camera. In the sequence that follows pressing the shutter release (mirror moves up out of the way, second curtain activates, first curtain exposes, second curtain closeses, mirror returns to original position) the activity of the mirror springing out of the way, intended to be an extremely fast action, can cause this vibration as it comes to a stop inside the camera. Under normal circumstances this activity produces a very minimal effect, often not noticed."