Sorry for the long delay.
I have two files ready to upload for your consideration - a .gpx file and a .ert file for the same simple route, both generated by the PFMS software currently used to load routes into our MGL Voyager. We hoped this might enable you to see what differences there may be between the PFMS version of .gpx and Skydemon's. The .ert is in case you may wish to consider supporting that format.
Unfortunately when I try to attach them the 'attach' window displays with the top half missing above my screen, and I can't browse to the files to attach them. Could I e-mail them to you by any chance?
Alpi Pioneer 200