Got the Montana and tested it recently on trip in Swiss/French/Italian Alps. Made routes in Mapsource (before buying the Montana) imported into Basecamp and downloaded routes to the Montana.

Unfortunately it didn' t work out to well as the routes were a mix between roads and straight lines (outside roads). Done this on my Zumo without problems but the problem with the Montana is that it recalculates automatically to beginning of route and then the straight lines turns into a mess. Is there any way to avoid this, like with the Zumo were it's prompted if you want to calculate to beginning of route? Even turning off recalculation,Montana still insist on taking you to start of route...an recalculates entire route in the process

Second issue was that some of the routes had to many waypoints. My buddies Zumo just split the route but the Montana just rejected the route. Strange that 50 waypoint limitation (or whatever the liit is) in 2015, thought that would be lot higher now?

The third issue might seem like a minor issue but to me it isn't. Trying to zoom in and out was almost impossible with gloves as 9 out of 10 times the "buttons" are to small so the Montana think I want to make a new way point. More or less gave up but really want to be able to zoom in to see details when lot's of stuff going on (like in a city) and out to see the bigger picture. Any way to get around this?

So most days my premade routes didn't work and when it did, I couldn't zoom in/out making navigation difficult. Not so happy but hope there are solutions?