03-08-11: StanwalI have a Technics SL1210M5G. The stock tonearm (with Technics headshell) has an effective mass of 12.5g, but I use an LPGear ZuPreme headshell, moving effective mass up to 19g (with cart mounting hardware). I could add another 5g with heavy screws and a headshell weight. I also have the KAB tonearm fluid damper, which reduces the amplitude of the cartridge/arm resonant peak.
You picked two I haven't used; what arm are you using? The 103 series like more mass than the others listed.
I'm wondering if the DL103R is worth the extra trouble over the DL301 II, as the 301 would drop right in and also track at a lower VTF.

