If you're wondering what's different between these and the old ones, it's because it's not mentioned anywhere online. These need Torx T8 bits to screw down the terminal, as opposed to the old 2mm hex. It's also got a new bit of annoying shiny unpainted metal that helps hold the bushing in place. It's safer I suppose, in terms of making it harder to open by hand, and it now makes that crunching noise that sounds like you're damaging it. Makes them more similar to Neutrik I guess, one less screwdriver