Well I think I figured out why I was getting those pauses. It seems the arcs in the sample files were created using many individual "G01" lines of code with incremental X, Y values instead of using one "G02" or "G03" line of code. The pausing I was noticing was coming at the end of each line of code. I created a simple G-code file were a couple circles would be plotted using a couple "G02" code lines and tested it. What do you know.... no more pausing. The motors ran without any hesitation through out each circle.
Now if I can only figure out how to get rid of the pausing at the end of each line of code to get everything to appear to move in one motion I will be happy. That's of course if it is possible.
Thanks