Jumpers in AC Receptacle?

I was doing some audio housekeeping yesterday, like making a DC cable and installing a new Furutech GTX-D receptacle that has been in a box here for a year or so.  The receptacle replaced a Porter Port in a double-gang box that houses two receptacles, each with its own 20A dedicated line feed.

When I was reconfiguring the wiring on both receptacles, I realized that while the 10 awg wires of each of the 20A lines power one-half of each of the duplex receptacles, power to the other half of each receptacle depends on the internal plated jumpers that connect the two halves of each duplex.  

My question is, do any of you see a benefit to using short jumpers made from 10 awg wire to connect the two halves of each duplex receptacle, instead of relying on the internal jumper metal?  Or, is this a symptom of Audiophilia Nervosa (AN)?  I went ahead and added short 10 awg wire jumpers to each receptacle, which was easy to do, and which now delivers the current to both halves of the duplex directly through a 10 awg copper wire.