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.



My question was more about the possible effect on sound quality rather than standard practices or code issues.  An electrician would likely tell me the outlet will work fine without adding 10 awg wire jumpers.  However, based on the significant improvements in SQ people report to result from relatively minor tweaks, I am curious whether anyone here has tried directly wiring both sides of a duplex outlet rather than relying on the internal plated jumpers to power the other half of the outlet, and whether they believe directly wiring both halves improves SQ?  

Electricity always flows via the path of least resistance so whether or not you'll be able to hear any discernible benefit, you can rest assured that the electricity is flowing through your jumpers.