My primo version is 9.6.13.267029.
What concerns path, then that's true, they are different. I tested it and presence or absence of trailing slash did not have any influence on the outcome, presentation of path with trailing slash looks (and is) more correct.

I could not run Primo directly off from SD card as I can not change the path or name of EXE file in the launcher (I got GoRider Excalibur GPS [Only registered and activated users can see links. ], it has the proprietary launcher. So far I have not figured out how to get to underlying Windows system and configuration files). The easiest way to solve it was just to point system to secondary root and its folders. Internal memory (4GB) has currently just two files/folders and they are there purely for forwarding purpose.

Another question emerged related to this:
I noticed that Becker Mamba has a separate catalog for tracks (../userdata/tracks/) and read.me file there states that Becker will automatically convert any GPX file found automatically to Primo format. Is that someting specific to Becker or can this be done with any version of Primo?