Speaking of wiper blades, I once put winter blades on the Legacy. You know, the ones where the blade assembly is sheathed in a rubber boot so ice doesn't build up in between the holder and the blade....anyway, as I set out one night at 8 pm for a 5 hr drive, in reasonably heavy rain, I discovered that at any speed over 100 km, the blades caught enough wind that they lifted off the windshield. I had to stop at the first place I found open to buy regular blades, and change them right there.
Now I don't use "winter" blades, but I do put new ones on in November.