I have used my drive to make a route and have tried to load to my unit, but no luck. When I try to find out which unit I have the website says it is a Start 50 or 55. When I look at other places it says that it is only a Start. Now I use home and my drive connect says my unit is not compatible, so that leads me to believe it is only a Start. Now when I went into my file drawer of manuals the only one i have is for an XL, which could be my previous one but the screen shots in it look alot like my current unit. Anyway I would like to be able to load my route I made on to a unit and if I need to upgrade then I will have to think about it. Thank you.