It's important to setup your decks correctly in order to play records with the lease amount of damage to the Vinyl, Stylus,and your mixing abilities. First if all best you get the manual for the turntable here this is very handy it's for the mk5 but the system setup is the basically the same for all the Technics SL1200 range. (1) getting the Turntable level. Adjusting the height of the insulators. with a sprit level check from back to front and left to right and adjust by screwing the legs clockwise or anticlockwise to achive a level surface. More