It's hard to gauge without a link and a brand name to look at. Depending on the application and certain rigs, CVD's could be the right fit for the type of bash/setup/rig.
For the rigs I have them on which in most cases stock 6S rigs, no lube is needed outside of normal cleaning maintenance. It never hurts to spray a little silicone spray on them, which I do every so often after a cleaning. Not required.