Basically on some S shaped arms if u look carefully & the needle/ cartridge looks slightly tilted to the inside then u need a different cartridge, Why? cause it will giv ya a bigger wear on the records, also the picking up and the attack of the needle over the groove will b slightly less than what should b!... If this happens with yer decks make sure u get a Cartridge that u can tweak the cartridge position in order 2 have the outward screw slightly more up front that the inwards 1 which sould b on a position a little behing the outwards 1!

Hope that made any sense! not easy 2 explain this in english and without images!

Z

PS - by screw I meant the 1s that attach the cartridge 2 the headshell!