Porziob,
Trust me it works wonderfully. Think about it as well. I am visually checking on a blank record that the arm is not moving too fast towards the center to need antiskate. How is it a hair brained scheme. Honestly, it is the simplest method. It will save so many so much grief that they will wonder why they struggled so long.
It is nothing new. Many people recommend using a blank side to check antiskate. I just am giving you recommendations to allow you to get to near perfect results very quickly.