I'm starting to plan out the wiring for my current build - is the practice of soldering grounds to the back of a pot just a convenient way to solder all grounds to a single point, or is it a necessity? Could I get away with earthing it all to the cavity shielding?

The main reason I ask is that I've got some push-push pots that have a DPDT switch backing onto the pot. I could probably squeeze a solder blob onto the side, but knowing how fiddly it can be to stick solder to pots, I'd rather just avoid the headache altogether.

Thanks!