So as I was looking at my account details on my personal login for Geocaching.com, I notice a section (Your Prefences) and in it there was a GPX Version and it said that I was using 1.0. I clicked on that section to edit it and there is a drop down box that lets me change between GPX Version 1.0 and 1.0.1. What does all this mean and do I need to change anything? Is version 1.0.1 better? Please weight in?