Nizzle, I agree with the others. A properly installed receptacle & cord will preform without incident for years.
The last trouble call I went on involving a pigtail was caused by an Employee of the Big Blue Box.
Seems that when they delivered the appliance, they couldn't figure out the connector supplied with the cord, so they just left it off.
8 months later, the vibrations of the cord cut through the insulation, shorted out, & scared the Homeowners silly.
I went to our local Store, & told them what had happened, & now they keep a box of 1" romex connectors on the delivery trucks.
Good Luck to You.
