Choose an arm that is appropriate for your cartridge. Low mass cartridge should be installed in a low mass arm. Choose an arm for its adjustably. All aspects of cartridge setup should be clear and easily adjusted. Good bearings and precision of manufacture will be important especially for long term performance.
tonearm parameters
I've been reviewing turntable recommendations, on this and other forums, and what I'm struck with is advice that often you should upgrade the tonearm. This is especially true of vintage Thorens, Technics ,Luxman,and many other turntables Frequently, [not exclusively] Rega tonearms are recommended. We'll, I've had Rega P3,P5,RP6, and currently, RP8 turntables as well as Music Halls and Project TTs. In addition, I've had VPI TT's. I'm at a loss as to what is optimal in Tonearm qualities, and respectfully request from Audiogon members what exactly are the paramaters to look for.