cartridge for Pro-ject debut III

Denon Dl 110 or Dl 160. Alternatively, get a OM20 or OM30 Stylus for the Ortofon cartridge that came standard on that table.

Wouldn't Grado Gold work well too? I myself am not sure.

I forgot to mention I bought him the acrylic platter last year so MC cartridges are not a problem. I guess what I am wondering is how much difference dose arm mass make in the performance of a given cartridge. The effective arm mass of the debut is 9.5 grams. I had read that the Denon DL-103 worked better around 15 to 20 grams effective mass. I can't seem to find a compliance spec for the Denon nor would I know how it translates to arm mass any help would be appreciated