I don't know about the chips in question but when Burt took over for USPC they reproduced many of the inlay. However, like I've pointed out before, Burt inlay were, for the most part, smaller than USPC inlays.

Note that the inlay and design is proportionally smaller in the Burt chip.

Here is a page from my website that shows both USPC and Burt chips made for the Dallas CC. Note again the smaller inlay for the Burt Chips

http://www.angelfire.com/extreme/chipper/NonNevada/DallasCC.htm