cartiage for Kenwood L07D genuine tone arm

Jagdzaku, I wouldn't let the stock tonearm discourage purchase of an LO7D. It is a superb TT, even without the arm. If you have access to a machinist, it is feasible to devise a generic turntable mount that will clamp down into the stock tonearm pod collet and accept pretty much any surface mounted tonearm(e.g. Dynavector, Trans-Fi, Talea, Kuzma, Schroeder.) I've had great results with Trans-Fi on L07D.

As with cartridge weight, the mass and distance of the counterweight from the pivot point certainly changes the effective mass/inertial mass of the combined system.