When are you going to sort out the basic navigation mapping algorithm so that I get reliable navigation along my selected route. I recently had my Go6xx lose the pre-planned track after I missed a turn and it took a full 10 minutes to recover and then it wanted to take me back to the missed turn. My old 910 would instantly find a new route and appeared to have common sense as part of its mapping. This latest device is just plain dumb. I find my free phone app is better at recovering from a detour than this expensive piece of junk. Sorry but your devices are not cutting the mustard as navigators.