When installing your equipment make sure that everything is tight down properly; V brackets, rods, etc. If you start your alignment and that one small part of your set-up if loose, you will have a hard time doing your alignment because you will never be able to have repeatable measurements!

Laser Alignment and Readings Repeatability
After taking readings, with a laser alignment system, when making corrections, how often do you have to correct and correct again? Frustration sets in? Precision