Cartridge for Interspace

I have been using a Nottingham Interspace table and arm for 2 years. I have been using Dynavector 20 cartridge but have had 2 cantilever failures- one by the cleaning lady-one my fault. Any other suggestions on cartridges for this combination?
Shelter/Sumiko.Fuller tonally/fast&quick.
2nd on Shelter. The 501 mk II is a good match. Cheers,
IMO the Shelter is tonally fuller than the Dyna 20 but certainly is not quick. As a matter of fact, none of the Shelters are particularly quick in the Zyx, Benz, and higher end Dyna context.