OK I was finally able to do some testing using wild.bill's suggestion:
I placed an 8.5x11 inch piece of paper, about the thickness of a 3x5 index card, down onto my mesh screen work area.
I did a re-focus on this paper surface.
Next, I slid my 6x6 inch 3/8 inch thick clear acrylic plate into my lower left work area 'pocket'.
I did some laser burn tests.
I'm happy to report that the burn tests were a great success...!!! The advantages of this technique are:
1. I don't have to mirror my Text since the surface burns are taking place on the 'bottom' of the plate as it lays in my laser machine work area.
2. No tape, no sticky paper, nothing of any kind needed on the bottom surface of the acrylic.
This was a great idea wild.bill...all one has to do is just lay down some white, thick paper and then the acrylic and start laser burning the text!!