Hello there, I'm looking at buying a few second hand units that I can put to use for self-drive tours. I have recorded tracks that I like to display on the units, if this doesn't work I have to resort to transferring routes created in Mapsource / Basecamp along with maps that don't come with the unit. My main issue is that routing is very unreliable in our region, you will end up on 4wd tracks with your Ford Fiesta...

I got from a friend a 255 but it cannot handle custom routes. I also read that even if you create custom routes in the software the unit will calculate them anew. Can this be prevented?

I would be happy if you could recommend a suitable unit and approach. Or is there any Android app that can do the job?

Thanks so much for your help!