soundwatts, I strongly suspect that you were either doing the 'upgrades' yourself, or you had a dealer that was 'less than able' in doing it for you.
Once the LP12 is set up correctly it will keep that set up for years. Unfortunately, IF you start to play with the settings and don't know how to set them right, then the statement that you made makes sense.
Once the LP12 is set up correctly it will keep that set up for years. Unfortunately, IF you start to play with the settings and don't know how to set them right, then the statement that you made makes sense.