Can't speak to the T50, but I had the Stanton STR8-80, which used the same, underhung arm design. The short arm lets you mount the cartridge with no offset angle, therefore minimum skating forces. This helps the stylus stay in the groove during scratching and other DJ techniques, and it was also recommended as a better tracker for worn 78's (my Stanton did easily track some records that a Dual with the same cartridge couldn't handle). However, there is considerably greater tracking angle error, and some articles recommend using conical styli for this type of arm since finer profiles can't be aligned to the groove very well:
from KAB: "Because of the excessive tracking error of 17 degrees, you must never use elliptical styli in a Scratch DJ straight arm. The fine edges of the elliptical profile depend on near perfect tangental alignment. With an error of 17 degrees, these fine edges become sharp cutting tools and will shave the surface of the vinyl groove. Stick with conical or spherical shaped styli when using a straight Scratch DJ tonearm."
I used inexpensive cartridges, sometimes DJ models (e.g., Stanton 500AL, 500.V3, 890SA, Goldring Elan, Shure M70BX, Audio Technica CN5625AL); they all worked fine and I had no record damage issues.