I have been using my AVIC Z1 for two months now, but yet to get the Smart Routing feature actual to learn my 'local knowledge' of the roads. I have been driving to the same location almost daily, but still does not incorpate my short cuts. In fact, when I 'force' a route by adding waypoints along the way, the route I choose becomes shorter than the default route the Z1 chooses.

I do have the learning capabilites turned on. (I don't recall the correct name.)

Is this just a gimmick that Pioneer was stating?

The whole "learning processor" feature that is supposed to be in the Pioneer nav units is a mystery. I've had the older AVIC-9 and AVIC-90 nav units and now have a D1 and a Z1 and have no idea how, or if at all it works. My AVIC-9/90 seemed to actually learn my routes better.