Thanks to those who responded and added more clarification to the discrepancy reported.  My key question was the difference in the number of Unworked entities I was observing depending on what I used to create a Report.  That was difference turned out to be Kingman Reef, and Dave put that straight and the reason for the difference was further clarified by John K9EL who manages the CQ DX Marathon.  Joe W4TV commented the minor difference in the Prefix were essentially CQ version vis ARRL version.  I would agree that those differences would not be worth any corrective action.

The flexibility of DXLab Suite is terrific, and although I have used it for several years now, I continue to learn about how to make even more use of it.
Thanks,

Norm W4QN