I wanted to post a quick update and let everyone know that after careful testing and refocusing of the 2 lenses on my booksaver, I was able to make significant improvements in the quality of the scans of both book page sides.
I believe what occurred is that the equipment was jarred slightly during the shipping process and this caused the lenses to be misaligned by a small amount. The focus knobs are fairly easy to turn so I can see how this might have happened with a bump or two.
I was able to put the lens covers back on and confirm that the quality of the images is significantly better than original focal quality received out of the box.
I will start scanning my books in the coming weeks. I was concerned about quality at first, but am now feeling pretty good about this.