But you also don't want to want into the office & tell the boss you dropped the alignment head.. So usually it just gets ignored... How accurate is a head that's been bounce tested? Did it pass? Probably not...
I worked in a shop with a Beam Visualiner. Told the boss several times that they needed a calibration.
Yep, I was told "It don't matter once they hit the first pot hole." Poor excuse in my book.
I was young and wanted to do the job right.