Hi Ian(Data)
DJ cartridges are a lot tougher. They are designed for back cueing. They have a thicker cantilever.
There has been a lot of cheap (or fake) shure styli knocking about over the years. These don't always last as long or sound as good.
Go for a Denon. A cheap cartridge that is good. I have used a DL304 to good effect. Have a look at the cheaper DL103 as well.
SCIDB