On those types of Devices, with the "Sandwiched Terminations":
With Solid # 12 Conductors, I will normally loop the Conductor around the Screw instead of using the "Back-Wire" option.
With Stranded # 12 Conductors, I will use the "Back-Wire" option.
I know these Terminations are listed for Solid and Stranded usage, it's just my personal preferences to go do the Voodoo that I do - shown above.
(humor attempt using wordage from old Movie)
I also tighten up the unused Screws on any device - to eliminate (read: Try To Reduce) possible Ground Faults, and the showers of sparks associated with said Ground Faults.
Also tape around Devices - again only a personal preference, not anything mandatory.
Scott35
