Recommendations for 20 amp electrical outlets

Thank you, @devinplombier .  I truly don't have a good understanding of the subject of home electrical and the isolated ground nomencalure confused me (which is not hard to do).  Amm my circuits, including the dedicated circuits I installed for my system, are NOT isolated ground circuits, and obviously none of my duplex  receptacles are IG receptacles.  I was confusing IG with the uninsulated equipment ground.  Just something else to put in the "what I learned today" column.  Thanks again for helping me out with that.

Gotcha, @jea48  .  That definitely clears it up for me now.  I did not know what an 'isolated ground' was before, and now I do.

None of the duplexes I installed in the circuits I installed for my system are IGs, and on the existing circuits in my home that I have worked on before, I do not remember seeing any insulated equipment ground wires, nor do I remember seeing any insulated ground wires connected to the neutral bar behind my panel, except for the insulated white wires.

That typed, one of my many flaws is that I have tunnel vision and if I am not specifically looking for something I do not see it or I often forget what I saw assuming that I did see it.

This is interesting though, because back in the '90s I bought a DIY home wiring book at Lowes, and a few years ago when I was installing some more dedicated circuits I referred to it to see what I needed to do behind the panel, and the pictures were actually showing insulated (green) equipment ground wires coming back to the neutral bar behind the panel.  Now I have to assume that the pictures were of an IG?

Anyway, TMI, but I didn't feel comfortable working behind my panel using what that book was showing me, so I watched a few youtubes of people putting new circuits in and used those as my reference.  

Some of these house wiring YouTube videos are lethal. Literally. Just saying :)

I'm glad I'm poor ,I just plug my Amp into the wall outlet...what will be will be....rock o ...