Just dusted down my 40yr. Old PL12-D and Album collection unused for 20yrs and fitted a new £20 cartridge, but know need to set it up properly. (1) The stylus over shoots the "Overhang Checker" requiring the Arm to be slid backwards, how do I do this, is it by unscrewing the Pivot Pin Spindle ? (2) How do I check to adjust the Sliding Off Set Weight ? (3) How do I check to adjust the "Ati Skating" adjustment ?