Has anyone used their M3+ to track an Ultra Marathon or equivalent so their crew can follow them in areas with no cell reception and see their location on a course? if so how well has it worked? I am looking to upgrade from an old M1 which really didn't work for this as the course would not show up on a mobile browser and it would only show a dot on a map and wondering if the updated software that I could not use on the M1 works any better?


