@kevemaher : I can give you that tonearm characteristic but with all respect you need to make yur research that at the end it’s a learning and fun " trip ": the effective mass Technics tonearm is 12 grs.
Yes, the transducers are the more critical and important link in the audio system, I posted before in agreement with you. NO the tonearm can’t has the cartridge direct influence in the signature of what we are listening .
Good decision to test your cartridges in the Denon 57L that looks as really good TT/tonearm:
Denon DP-57L Servo-Controlled Direct-Drive Turntable Manual | Vinyl Engine
R.